Fatto generale: 16165 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 16165 is a boring number.
Trivia: 16165 is an uninteresting number.
Data storica: April 3rd is the day in 1888 that the first of 11 unsolved brutal murders of women committed in or near the impoverished Whitechapel district in the East End of London, occurs.