72433007664 has 40 divisors (see below), whose sum is σ = 190290112320. Its totient is φ = 23735108928.

The previous prime is 72433007657. The next prime is 72433007677. The reversal of 72433007664 is 46670033427.

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, 12785482 + ... + 12791145.

It is an arithmetic number, because the mean of its divisors is an integer number (4757252808).

Almost surely, 2^72433007664 is an apocalyptic number.

It is an amenable number.

72433007664 is an abundant number, since it is smaller than the sum of its proper divisors (117857104656).

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

72433007664 is a wasteful number, since it uses less digits than its factorization.

72433007664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25576697 (or 25576691 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 42.

The spelling of 72433007664 in words is "seventy-two billion, four hundred thirty-three million, seven thousand, six hundred sixty-four".