Donald John Trump = 6 4 5
BUT his original spelling of Trump is Drumpf; thus:
Donald John Drumpf = 6 4 6
BUT in Hebrew, one form of "John" is spelled with the consanants Yud, Heh, Vav, Chet, Nun, Vav; thus:
Donald Yhvcnv Drumpf = 6 6 6
Also we may add to this compelling information that it is entirely possible that the combover is to hide the big 666 stamped on his pate. Also, we know he is a businessman, and businessmen are all about money, and money is mammon, so...
Also "Donald" means "Ruler of the World" and so the words "The antichrist will be ruler of the world", can be liberally retranslated as "The antichrist will be DONALD"! and Trump of course means "trumpet" or "trumpeter" which is what we would expect in a revelation scenario. It's not impossible to say that this is our last president, the LAST TRUMP!
So is Trump actually Ye Olde Antichriste? You decide!