22956818618 has 4 divisors (see below), whose sum is σ = 34435227930. Its totient is φ = 11478409308.

The previous prime is 22956818617. The next prime is 22956818641. The reversal of 22956818618 is 81681865922.

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

It can be written as a sum of positive squares in only one way, i.e., 14052442849 + 8904375769 = 118543^2 + 94363^2 .

It is not an unprimeable number, because it can be changed into a prime (22956818611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5739204653 + ... + 5739204656.

Almost surely, 2^22956818618 is an apocalyptic number.

22956818618 is a deficient number, since it is larger than the sum of its proper divisors (11478409312).

22956818618 is a wasteful number, since it uses less digits than its factorization.

22956818618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11478409311.

The product of its digits is 3317760, while the sum is 56.

The spelling of 22956818618 in words is "twenty-two billion, nine hundred fifty-six million, eight hundred eighteen thousand, six hundred eighteen".