66481083 has 12 divisors (see below), whose sum is σ = 96132400. Its totient is φ = 44272656.

The previous prime is 66481073. The next prime is 66481097. The reversal of 66481083 is 38018466.

It is a happy number.

66481083 is a `hidden beast` number, since 6 + 648 + 1 + 0 + 8 + 3 = 666.

It is not a de Polignac number, because 66481083 - 2⁹ = 66480571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66481013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6093 + ... + 13041.

Almost surely, 2^66481083 is an apocalyptic number.

66481083 is a deficient number, since it is larger than the sum of its proper divisors (29651317).

66481083 is a wasteful number, since it uses less digits than its factorization.

66481083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8018 (or 8015 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 66481083 is about 8153.5932569635. The cubic root of 66481083 is about 405.1035309165.

The spelling of 66481083 in words is "sixty-six million, four hundred eighty-one thousand, eighty-three".