Fatto generale: 2616 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2616 is the number of graphs with 9 vertices and 6 cycles.
Trivia: 2616 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 28th is the day in 1959 that Discoverer 1, an American spy satellite that is the first object to achieve a polar orbit, is launched.