72221115605198 has 16 divisors (see below), whose sum is σ = 130323817633920. Its totient is φ = 29322858967416.

The previous prime is 72221115605147. The next prime is 72221115605203. The reversal of 72221115605198 is 89150651112227.

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, 135753976436 + ... + 135753976967.

It is an arithmetic number, because the mean of its divisors is an integer number (8145238602120).

Almost surely, 2^{72221115605198} is an apocalyptic number.

72221115605198 is a deficient number, since it is larger than the sum of its proper divisors (58102702028722).

72221115605198 is a wasteful number, since it uses less digits than its factorization.

72221115605198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271507953431.

The product of its (nonzero) digits is 604800, while the sum is 50.

The spelling of 72221115605198 in words is "seventy-two trillion, two hundred twenty-one billion, one hundred fifteen million, six hundred five thousand, one hundred ninety-eight".