22865158100 has 36 divisors (see below), whose sum is σ = 52536067164. Its totient is φ = 8608058880.

The previous prime is 22865158091. The next prime is 22865158111. The reversal of 22865158100 is 185156822.

It can be written as a sum of positive squares in 6 ways, for example, as 751088836 + 22114069264 = 27406^2 + 148708^2 .

It is a super-2 number, since 2×22865158100² (a number of 22 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 11 ways as a sum of consecutive naturals, for example, 6723347 + ... + 6726746.

It is an arithmetic number, because the mean of its divisors is an integer number (1459335199).

Almost surely, 2^22865158100 is an apocalyptic number.

22865158100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22865158100 is an abundant number, since it is smaller than the sum of its proper divisors (29670909064).

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

22865158100 is a wasteful number, since it uses less digits than its factorization.

22865158100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13450124 (or 13450117 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 22865158100 in words is "twenty-two billion, eight hundred sixty-five million, one hundred fifty-eight thousand, one hundred".