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Anonymous
666 is beleived to be bad because it referenced in The Bible, Book of Revelations as the number (symbol0 of the devil.
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No and it includes every symbol of the Roman numeral system in order because MDCLXVI equals 1666
no. there's 2
1666 = mdclxvi
Yes as for example MDCLXVI = 1666
01666 is the same as 1666 which is a whole number