Fatto generale: 64366 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 64366 is an uninteresting number.
Trivia: 64366 is a boring number.
Data storica: March 23rd is the day in 1982 that Guatemala's government, headed by Fernando Romeo Lucas García is overthrown in a military coup by right-wing General Efraín Ríos Montt.