Fatto generale: 16170 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 16170 is an unremarkable number.
Trivia: 16170 is a boring number.
Data storica: April 8th is the day in 1904 that the French Third Republic and the United Kingdom of Great Britain and Ireland sign the Entente cordiale.