665376083044608 has 144 divisors (see below), whose sum is σ = 1958634561550016. Its totient is φ = 199197829324800.

The previous prime is 665376083044601. The next prime is 665376083044657. The reversal of 665376083044608 is 806440380673566.

It is not an unprimeable number, because it can be changed into a prime (665376083044601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900228418 + ... + 900967233.

Almost surely, 2^{665376083044608} is an apocalyptic number.

It is an amenable number.

665376083044608 is an abundant number, since it is smaller than the sum of its proper divisors (1293258478505408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665376083044608 is a wasteful number, since it uses less digits than its factorization.

665376083044608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801195720 (or 1801195706 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 66.

The spelling of 665376083044608 in words is "six hundred sixty-five trillion, three hundred seventy-six billion, eighty-three million, forty-four thousand, six hundred eight".