22161115317 has 16 divisors (see below), whose sum is σ = 32488169472. Its totient is φ = 13325220720.

The previous prime is 22161115309. The next prime is 22161115363. The reversal of 22161115317 is 71351116122.

It is not a de Polignac number, because 22161115317 - 2³ = 22161115309 is a prime.

It is a super-2 number, since 2×22161115317² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161115387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2639703 + ... + 2648084.

It is an arithmetic number, because the mean of its divisors is an integer number (2030510592).

Almost surely, 2^22161115317 is an apocalyptic number.

It is an amenable number.

22161115317 is a deficient number, since it is larger than the sum of its proper divisors (10327054155).

22161115317 is a wasteful number, since it uses less digits than its factorization.

22161115317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287928.

The product of its digits is 2520, while the sum is 30.

The spelling of 22161115317 in words is "twenty-two billion, one hundred sixty-one million, one hundred fifteen thousand, three hundred seventeen".