Fatto generale: 16620 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 16620 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 16620 is an unremarkable number.
Data storica: July 2nd is the day in 1976 that Fall of the Republic of Vietnam; Communist North Vietnam declares their union to form the Socialist Republic of Vietnam.