22536621688 has 16 divisors (see below), whose sum is σ = 48292760880. Its totient is φ = 9658552128.

The previous prime is 22536621649. The next prime is 22536621703. The reversal of 22536621688 is 88612663522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201219781 + ... + 201219892.

It is an arithmetic number, because the mean of its divisors is an integer number (3018297555).

Almost surely, 2^22536621688 is an apocalyptic number.

22536621688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22536621688 is an abundant number, since it is smaller than the sum of its proper divisors (25756139192).

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

22536621688 is a wasteful number, since it uses less digits than its factorization.

22536621688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402439686 (or 402439682 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The spelling of 22536621688 in words is "twenty-two billion, five hundred thirty-six million, six hundred twenty-one thousand, six hundred eighty-eight".