22551609600 has 432 divisors, whose sum is σ = 89064438400. Its totient is φ = 5550612480.

The previous prime is 22551609571. The next prime is 22551609601. The reversal of 22551609600 is 690615522.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22551609601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2241381 + ... + 2251419.

Almost surely, 2^22551609600 is an apocalyptic number.

22551609600 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 22551609600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44532219200).

22551609600 is an abundant number, since it is smaller than the sum of its proper divisors (66512828800).

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

22551609600 is a wasteful number, since it uses less digits than its factorization.

22551609600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10087 (or 10062 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 22551609600 in words is "twenty-two billion, five hundred fifty-one million, six hundred nine thousand, six hundred".