Fatto generale: 66906 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 66906 is an unremarkable number.
Trivia: 66906 is an unremarkable number.
Data storica: March 7th is the day in 2009 that the Real Irish Republican Army kills two British soldiers and two civilians, the first British military deaths in Northern Ireland since The Troubles.