72170401622232 has 32 divisors (see below), whose sum is σ = 180498844738800. Its totient is φ = 24047088449664.

The previous prime is 72170401622227. The next prime is 72170401622251. The reversal of 72170401622232 is 23222610407127.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606945007 + ... + 607063902.

Almost surely, 2^{72170401622232} is an apocalyptic number.

It is an amenable number.

72170401622232 is an abundant number, since it is smaller than the sum of its proper divisors (108328443116568).

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

72170401622232 is a wasteful number, since it uses less digits than its factorization.

72170401622232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214011395 (or 1214011391 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 72170401622232 in words is "seventy-two trillion, one hundred seventy billion, four hundred one million, six hundred twenty-two thousand, two hundred thirty-two".