72115161167722 has 8 divisors (see below), whose sum is σ = 108336888554400. Its totient is φ = 36002864982924.

The previous prime is 72115161167701. The next prime is 72115161167737. The reversal of 72115161167722 is 22776116151127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72115161167722² (a number of 29 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 27357798822 + ... + 27357801457.

It is an arithmetic number, because the mean of its divisors is an integer number (13542111069300).

Almost surely, 2^{72115161167722} is an apocalyptic number.

72115161167722 is a deficient number, since it is larger than the sum of its proper divisors (36221727386678).

72115161167722 is a wasteful number, since it uses less digits than its factorization.

72115161167722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54715600940.

The product of its digits is 493920, while the sum is 49.

The spelling of 72115161167722 in words is "seventy-two trillion, one hundred fifteen billion, one hundred sixty-one million, one hundred sixty-seven thousand, seven hundred twenty-two".