660663032 has 32 divisors (see below), whose sum is σ = 1249531920. Its totient is φ = 327467520.

The previous prime is 660663019. The next prime is 660663043. The reversal of 660663032 is 230366066.

It is a self number, because there is not a number n which added to its sum of digits gives 660663032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675728 + ... + 676704.

Almost surely, 2^660663032 is an apocalyptic number.

It is an amenable number.

660663032 is a deficient number, since it is larger than the sum of its proper divisors (588868888).

660663032 is a wasteful number, since it uses less digits than its factorization.

660663032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 660663032 is about 25703.3661608747. The cubic root of 660663032 is about 870.9502243820.

The spelling of 660663032 in words is "six hundred sixty million, six hundred sixty-three thousand, thirty-two".