22557420600 has 384 divisors, whose sum is σ = 82532217600. Its totient is φ = 5024563200.

The previous prime is 22557420569. The next prime is 22557420601. The reversal of 22557420600 is 602475522.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22557420601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24280936 + ... + 24281864.

It is an arithmetic number, because the mean of its divisors is an integer number (214927650).

Almost surely, 2^22557420600 is an apocalyptic number.

22557420600 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 22557420600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41266108800).

22557420600 is an abundant number, since it is smaller than the sum of its proper divisors (59974797000).

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

22557420600 is a wasteful number, since it uses less digits than its factorization.

22557420600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 22557420600 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty thousand, six hundred".