72203667572 has 12 divisors (see below), whose sum is σ = 126760115076. Its totient is φ = 35986491840.

The previous prime is 72203667533. The next prime is 72203667587. The reversal of 72203667572 is 27576630227.

It can be written as a sum of positive squares in 2 ways, for example, as 1120642576 + 71083024996 = 33476^2 + 266614^2 .

It is a super-2 number, since 2×72203667572² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28834079 + ... + 28836582.

It is an arithmetic number, because the mean of its divisors is an integer number (10563342923).

Almost surely, 2^72203667572 is an apocalyptic number.

It is an amenable number.

72203667572 is a deficient number, since it is larger than the sum of its proper divisors (54556447504).

72203667572 is a wasteful number, since it uses less digits than its factorization.

72203667572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57670978 (or 57670976 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 47.

The spelling of 72203667572 in words is "seventy-two billion, two hundred three million, six hundred sixty-seven thousand, five hundred seventy-two".