72317057220322 has 16 divisors (see below), whose sum is σ = 110748286156032. Its totient is φ = 35406278093520.

The previous prime is 72317057220293. The next prime is 72317057220329. The reversal of 72317057220322 is 22302275071327.

It is not an unprimeable number, because it can be changed into a prime (72317057220329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1329037288 + ... + 1329091699.

It is an arithmetic number, because the mean of its divisors is an integer number (6921767884752).

Almost surely, 2^{72317057220322} is an apocalyptic number.

72317057220322 is a deficient number, since it is larger than the sum of its proper divisors (38431228935710).

72317057220322 is a wasteful number, since it uses less digits than its factorization.

72317057220322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658129273.

The product of its (nonzero) digits is 493920, while the sum is 43.

The spelling of 72317057220322 in words is "seventy-two trillion, three hundred seventeen billion, fifty-seven million, two hundred twenty thousand, three hundred twenty-two".