22651479900 has 720 divisors, whose sum is σ = 88727654400. Its totient is φ = 4991414400.

The previous prime is 22651479899. The next prime is 22651479923. The reversal of 22651479900 is 997415622.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 86127169 + ... + 86127431.

Almost surely, 2^22651479900 is an apocalyptic number.

22651479900 is a gapful number since it is divisible by the number (20) 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 22651479900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44363827200).

22651479900 is an abundant number, since it is smaller than the sum of its proper divisors (66076174500).

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

22651479900 is a wasteful number, since it uses less digits than its factorization.

22651479900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 22651479900 in words is "twenty-two billion, six hundred fifty-one million, four hundred seventy-nine thousand, nine hundred".