Fatto generale: 6676 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6676 is a boring number.
Trivia: 6676 is an uninteresting number.
Data storica: April 11th is the day in 1968 that President Lyndon B. Johnson signs the Civil Rights Act of 1968, prohibiting discrimination in the sale, rental, and financing of housing.