Fait général: 16856 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 16856 is a boring number.
Culture générale: 16856 is an uninteresting number.
Date historique: February 23rd is the day in 1954 that the first mass inoculation of children against polio with the Salk vaccine begins in Pittsburgh.