72220611611500 has 96 divisors (see below), whose sum is σ = 172075398243840. Its totient is φ = 26261047256000.

The previous prime is 72220611611441. The next prime is 72220611611501. The reversal of 72220611611500 is 511611602227.

It is not an unprimeable number, because it can be changed into a prime (72220611611501) 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, 153870177 + ... + 154338823.

It is an arithmetic number, because the mean of its divisors is an integer number (1792452065040).

Almost surely, 2^{72220611611500} is an apocalyptic number.

It is an amenable number.

72220611611500 is an abundant number, since it is smaller than the sum of its proper divisors (99854786632340).

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

72220611611500 is a wasteful number, since it uses less digits than its factorization.

72220611611500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496696 (or 496684 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 72220611611500 in words is "seventy-two trillion, two hundred twenty billion, six hundred eleven million, six hundred eleven thousand, five hundred".