64700332432 has 20 divisors (see below), whose sum is σ = 125881407360. Its totient is φ = 32214807968.

The previous prime is 64700332397. The next prime is 64700332441. The reversal of 64700332432 is 23423300746.

It is a super-2 number, since 2×64700332432² (a number of 22 digits) contains 22 as substring.

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, 8455948 + ... + 8463595.

It is an arithmetic number, because the mean of its divisors is an integer number (6294070368).

Almost surely, 2^64700332432 is an apocalyptic number.

It is an amenable number.

64700332432 is a deficient number, since it is larger than the sum of its proper divisors (61181074928).

64700332432 is a wasteful number, since it uses less digits than its factorization.

64700332432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16919790 (or 16919784 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 34.

The spelling of 64700332432 in words is "sixty-four billion, seven hundred million, three hundred thirty-two thousand, four hundred thirty-two".