The Oxyrhynchus guys still have not figured out that it was a reference to RONALD (6) WILSON (6) REAGAN (6). They have however put up a picture of the earliest 616 reading for Rev. 13:18, and a discussion of the numerology involved.
They did not mention the possibility of Hebrew gematria in the interpretation of the verse. Any takes on 666? (I do not really think it is Reagan.)