Fait général: 65820 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 65820 is an unremarkable number.
Culture générale: 65820 is a boring number.
Date historique: March 16th is the day in 1916 that the 7th and 10th US cavalry regiments under John J. Pershing crossed the US-Mexico border to join the hunt for Pancho Villa.