64967932032 has 32 divisors (see below), whose sum is σ = 172571070480. Its totient is φ = 21655977216.

The previous prime is 64967932013. The next prime is 64967932111. The reversal of 64967932032 is 23023976946.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84593278 + ... + 84594045.

Almost surely, 2^64967932032 is an apocalyptic number.

It is an amenable number.

64967932032 is an abundant number, since it is smaller than the sum of its proper divisors (107603138448).

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

64967932032 is a wasteful number, since it uses less digits than its factorization.

64967932032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169187340 (or 169187328 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 51.

The spelling of 64967932032 in words is "sixty-four billion, nine hundred sixty-seven million, nine hundred thirty-two thousand, thirty-two".