Fatto generale: 20669 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 20669 is an uninteresting number.
Trivia: 20669 is an uninteresting number.
Data storica: August 2nd is the day in 1937 that the Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal.