72522660742256 has 80 divisors (see below), whose sum is σ = 142332254438400. Its totient is φ = 35794173972480.

The previous prime is 72522660742223. The next prime is 72522660742313. The reversal of 72522660742256 is 65224706622527.

It is a super-2 number, since 2×72522660742256² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762842981 + ... + 762938043.

It is an arithmetic number, because the mean of its divisors is an integer number (1779153180480).

Almost surely, 2^{72522660742256} is an apocalyptic number.

It is an amenable number.

72522660742256 is a deficient number, since it is larger than the sum of its proper divisors (69809593696144).

72522660742256 is a wasteful number, since it uses less digits than its factorization.

72522660742256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96654 (or 96648 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 56.

The spelling of 72522660742256 in words is "seventy-two trillion, five hundred twenty-two billion, six hundred sixty million, seven hundred forty-two thousand, two hundred fifty-six".