72556081983398 has 64 divisors (see below), whose sum is σ = 121260718656000. Its totient is φ = 32333898055680.

The previous prime is 72556081983397. The next prime is 72556081983419. The reversal of 72556081983398 is 89338918065527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72556081983397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 650129090 + ... + 650240682.

It is an arithmetic number, because the mean of its divisors is an integer number (1894698729000).

Almost surely, 2^{72556081983398} is an apocalyptic number.

72556081983398 is a deficient number, since it is larger than the sum of its proper divisors (48704636672602).

72556081983398 is a wasteful number, since it uses less digits than its factorization.

72556081983398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113457.

The product of its (nonzero) digits is 783820800, while the sum is 74.

The spelling of 72556081983398 in words is "seventy-two trillion, five hundred fifty-six billion, eighty-one million, nine hundred eighty-three thousand, three hundred ninety-eight".