Giovanna -- "Caesar" in the case of Nero was NOT a Title, it was his name.
That is why I point out we need to study history -- when a member of the Julii-Claudi donned the purple he adopted the name of his illustrious predecessor, Caesar
Nero's name WAS Nero Caesar...
Sorry, Chronos, not buying. Not only does the Bible exclude a title from being considered as part of the numerical equation of the name of the man who will be Antichrist, but Nero did not meet any other requirement of Scripture for being Antichrist.
The one question I always ask is, who in the history of the world has fulfilled the following:
And he causes all, the small and the great, and the rich and the poor, and the free men and the slaves, to be given a mark on their right hand or on their forehead, 17and he provides that no one will be able to buy or to sell, except the one who has the mark, either the name of the beast or the number of his name. (Revelation 13:16, 17)
There has never been a time in the history of the world where the technology existed for one man to not only know if a person had his mark, but to prevent that person from buying and selling if he did not have the mark. And this knowledge would be global, not just the known world as it existed in 70AD.
There has been no one who has met all the Biblical requirements for the Antichrist. That individual will make his appearance some time in the future.