22931255155 has 4 divisors (see below), whose sum is σ = 27517506192. Its totient is φ = 18345004120.

The previous prime is 22931255147. The next prime is 22931255183. The reversal of 22931255155 is 55155213922.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22931255155 - 2³ = 22931255147 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293125511 + ... + 2293125520.

It is an arithmetic number, because the mean of its divisors is an integer number (6879376548).

Almost surely, 2^22931255155 is an apocalyptic number.

22931255155 is a deficient number, since it is larger than the sum of its proper divisors (4586251037).

22931255155 is an equidigital number, since it uses as much as digits as its factorization.

22931255155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4586251036.

The product of its digits is 135000, while the sum is 40.

The spelling of 22931255155 in words is "twenty-two billion, nine hundred thirty-one million, two hundred fifty-five thousand, one hundred fifty-five".