Hecho general: 81645 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 81645 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 81645 is an unremarkable number.
Fecha histórica: July 15th is the day in 1983 that a terrorist attack is launched by Armenian militant organisation ASALA at the Paris-Orly Airport in Paris; it leaves 8 people dead and 55 injured.