Hecho general: 6766 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 6766 is a boring number.
Trivia: 6766 is an unremarkable number.
Fecha histórica: July 10th is the day in 1947 that Muhammad Ali Jinnah is recommended as the first Governor-General of Pakistan by British Prime Minister Clement Attlee.