Fatto generale: 66340 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 66340 is an uninteresting number.
Trivia: 66340 is an unremarkable number.
Data storica: August 18th is the day in 1848 that Camila O'Gorman and Ladislao Gutierrez are executed on the orders of Argentine dictator Juan Manuel de Rosas.