Fatto generale: 4163 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 4163 is the number of inequivalent asymmetric Ferrers graphs with 32 points.
Trivia: 4163 is an uninteresting number.
Data storica: May 25th is the day in 1953 that the first public television station in the United States officially begins broadcasting as KUHT from the campus of the University of Houston.