72115061161194 has 12 divisors (see below), whose sum is σ = 156249299182626. Its totient is φ = 24038353720392.

The previous prime is 72115061161139. The next prime is 72115061161223. The reversal of 72115061161194 is 49116116051127.

72115061161194 is a `hidden beast` number, since 7 + 2 + 1 + 15 + 0 + 6 + 11 + 611 + 9 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70500288638025 + 1614772523169 = 8396445^2 + 1270737^2 .

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 5 ways as a sum of consecutive naturals, for example, 2003196143349 + ... + 2003196143384.

Almost surely, 2^{72115061161194} is an apocalyptic number.

72115061161194 is an abundant number, since it is smaller than the sum of its proper divisors (84134238021432).

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

72115061161194 is a wasteful number, since it uses less digits than its factorization.

72115061161194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006392286741 (or 4006392286738 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 72115061161194 in words is "seventy-two trillion, one hundred fifteen billion, sixty-one million, one hundred sixty-one thousand, one hundred ninety-four".