The beast with two horns "causes all... to recieve a mark o their foreheads, and that no one may buy or sell except one who has the mark or the name of the beast, or the number of his name" (Rev. 13:16-17)

The man that stands at the top of the papal(antichristian) hierarchy is none other than the pope. His official title is "VICARIUS FILII DEI" meaning "Representative of the Son of God" (Our Sunday Visitor 4-18-1915). In Latin some letters have a numerical value.