Fait général: 16778 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 16778 is an uninteresting number.
Culture générale: 16778 is an unremarkable number.
Date historique: December 7th is the day in 2003 that the Conservative Party of Canada is officially recognized after the merger of the Canadian Alliance and Progressive Conservative Party of Canada.