Fatto generale: 8661 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 8661 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 8661 is an uninteresting number.
Data storica: September 17th is the day in 456 that Remistus, Roman general (magister militum), is besieged with a Gothic force at Ravenna and later executed in the Palace in Classis, outside the city.