22149791718 has 16 divisors (see below), whose sum is σ = 44301308016. Its totient is φ = 7382976480.

The previous prime is 22149791701. The next prime is 22149791723. The reversal of 22149791718 is 81719794122.

It is a super-2 number, since 2×22149791718² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145848 + ... + 256068.

It is an arithmetic number, because the mean of its divisors is an integer number (2768831751).

Almost surely, 2^22149791718 is an apocalyptic number.

22149791718 is an abundant number, since it is smaller than the sum of its proper divisors (22151516298).

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

22149791718 is a wasteful number, since it uses less digits than its factorization.

22149791718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143719.

The product of its digits is 508032, while the sum is 51.

The spelling of 22149791718 in words is "twenty-two billion, one hundred forty-nine million, seven hundred ninety-one thousand, seven hundred eighteen".