22507900688 has 240 divisors, whose sum is σ = 58753739520. Its totient is φ = 8252762112.

The previous prime is 22507900651. The next prime is 22507900699. The reversal of 22507900688 is 88600970522.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9100220 + ... + 9102692.

It is an arithmetic number, because the mean of its divisors is an integer number (244807248).

Almost surely, 2^22507900688 is an apocalyptic number.

22507900688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22507900688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29376869760).

22507900688 is an abundant number, since it is smaller than the sum of its proper divisors (36245838832).

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

22507900688 is a wasteful number, since it uses less digits than its factorization.

22507900688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 22507900688 in words is "twenty-two billion, five hundred seven million, nine hundred thousand, six hundred eighty-eight".