Hecho general: 61666 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 61666 is a boring number.
Trivia: 61666 is a boring number.
Fecha histórica: October 31st is the day in 1994 that an American Eagle ATR-72 crashes in Roselawn, Indiana, after circling in icy weather, killing 68 passengers and crew.