Hecho general: 18218 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 18218 is an uninteresting number.
Trivia: 18218 is an uninteresting number.
Fecha histórica: November 16th is the day in 1907 that Cunard Line's RMS Mauretania, sister ship of RMS Lusitania, sets sail on her maiden voyage from Liverpool, England to New York City.