Fatto generale: 170 is 170 is the maximum check-out possible in a standard game of darts (where the final score must be a double).
Fatto matematico: 170 is the smallest number n for which f(n) and s(n) are both square.
Trivia: 170 is largest integer for which Google"s built-in calculator function can compute the factorial.
Data storica: June 18th is the day in 1684 that the charter of the Massachusetts Bay Colony is revoked via a scire facias writ issued by an English court.