Fatto generale: 86664 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 86664 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 86664 is an unremarkable number.
Data storica: April 11th is the day in 1951 that the Stone of Scone, the stone upon which Scottish monarchs were traditionally crowned, is found on the site of the altar of Arbroath Abbey.