72664202464 has 48 divisors (see below), whose sum is σ = 166579283808. Its totient is φ = 30554214912.

The previous prime is 72664202453. The next prime is 72664202483. The reversal of 72664202464 is 46420246627.

It is a self number, because there is not a number n which added to its sum of digits gives 72664202464.

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, 3048447 + ... + 3072190.

It is an arithmetic number, because the mean of its divisors is an integer number (3470401746).

Almost surely, 2^72664202464 is an apocalyptic number.

It is an amenable number.

72664202464 is an abundant number, since it is smaller than the sum of its proper divisors (93915081344).

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

72664202464 is a wasteful number, since it uses less digits than its factorization.

72664202464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120707 (or 6120699 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 43.

The spelling of 72664202464 in words is "seventy-two billion, six hundred sixty-four million, two hundred two thousand, four hundred sixty-four".