Hecho general: 6558 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 6558 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 6558 is a boring number.
Fecha histórica: December 14th is the day in 1918 that Friedrich Karl von Hessen, a German prince elected by the Parliament of Finland to become King Väinö I, renounces the Finnish throne.