72351550564 has 12 divisors (see below), whose sum is σ = 126617097600. Its totient is φ = 36175236968.

The previous prime is 72351550549. The next prime is 72351550613. The reversal of 72351550564 is 46505515327.

It is a self number, because there is not a number n which added to its sum of digits gives 72351550564.

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, 449157 + ... + 588595.

It is an arithmetic number, because the mean of its divisors is an integer number (10551424800).

Almost surely, 2^72351550564 is an apocalyptic number.

It is an amenable number.

72351550564 is a deficient number, since it is larger than the sum of its proper divisors (54265547036).

72351550564 is a wasteful number, since it uses less digits than its factorization.

72351550564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269162 (or 269160 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 72351550564 in words is "seventy-two billion, three hundred fifty-one million, five hundred fifty thousand, five hundred sixty-four".