How do you explain the oldest copies of Rev actually have 616 and not 666. Whats even more interesting is 616 spells Nero. I would suggest you read some books written by schoalrs where they demonstrate beyond doubt that Rev is wishful hatred by a jew against Nero. The jew writes and huffs and puffs but of course Rome remains.
There is no prophecy in Revelation. IN fact Revelation was lucky to make it into the Bible, you can do the research and veriyf this yourself. Martin Luther thought it was junk. Read about Eusebius he was a very important character in the formation of the church and bible.
Eusebius (c. 263–339) was inclined to class the Apocalypse with the accepted books but also listed it in the Antilegomena , with his own reservation for identification of John of Patmos with John the Apostle, pointing out there were large differences in Greek skill and styles between the Gospel of John , which he attributed to John the Apostle, and the Revelation.  Jerome (347–420) relegated it to second class.  Most canons included it, but some in the Eastern Church rejected it.
The Number of the Beast is described in the passage of Revelation 13:15–18 and the actual number is only mentioned once, in verse 18 
Fragment from Papyrus 115 (P115) ofRevelation in the 66th vol. of theOxyrhynchus series (P. Oxy. 4499).  Has the number of the Beast as 616.
Other Revelation manuscripts such as Papyrus 115 and Codex Ephraemi Rescriptus (C; Paris, one of the four great uncial codices) reads the number of the beast in (13:18) as 616.
Bust of Nero at Musei Capitolini,Rome
It is widely accepted by many scholars that Roman Emperor Nero (ruling 54-68) is the first Beast of Revelation 13. This interpretation was received by enumerating his name and title Neron Caesar  to the Number of the Beast.    An Aramaic scroll from Murabba'at, dated to "the second year of Emperor Nero", refers to him by his name and title  where in Hebrew it is Nron Qsr (Pronounced "Neron Kaisar"), and in Latin it is Nro Qsr (Pronounced "Nero Kaisar"). 
- Nron Qsr
The Greek version of the name and title transliterates into Hebrew as ???? ??? , and yields a numerical value of 666:  
|Resh (?)||Samekh (?)||Qoph (?)||Nun (?)||Vav (?)||Resh (?)||Nun (?)||Sum|
- Nro Qsr
The Latin version of the name drops the second Nun (?), so that it appears as Nro and transliterates into Hebrew as ??? ??? , yielding 616: 
|Resh (?)||Samekh (?)||Qoph (?)||Vav (?)||Resh (?)||Nun (?)||Sum|