Fatto matematico: 5464 is the number of subsets of {1,2,3,...,16} that have a sum divisible by 12.
Trivia: 5464 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 16th is the day in 1811 that the first two in a series of four severe earthquakes occur in the vicinity of New Madrid, Missouri.