22625790660 has 144 divisors (see below), whose sum is σ = 74916878400. Its totient is φ = 5481665280.

The previous prime is 22625790631. The next prime is 22625790703. The reversal of 22625790660 is 6609752622.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5044779 + ... + 5049261.

It is an arithmetic number, because the mean of its divisors is an integer number (520256100).

Almost surely, 2^22625790660 is an apocalyptic number.

22625790660 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 22625790660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37458439200).

22625790660 is an abundant number, since it is smaller than the sum of its proper divisors (52291087740).

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

22625790660 is a wasteful number, since it uses less digits than its factorization.

22625790660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058 (or 7053 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 22625790660 in words is "twenty-two billion, six hundred twenty-five million, seven hundred ninety thousand, six hundred sixty".