22166925320 has 64 divisors (see below), whose sum is σ = 52568740800. Its totient is φ = 8389198080.

The previous prime is 22166925307. The next prime is 22166925331. The reversal of 22166925320 is 2352966122.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579590 + ... + 616650.

It is an arithmetic number, because the mean of its divisors is an integer number (821386575).

Almost surely, 2^22166925320 is an apocalyptic number.

22166925320 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 22166925320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26284370400).

22166925320 is an abundant number, since it is smaller than the sum of its proper divisors (30401815480).

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

22166925320 is a wasteful number, since it uses less digits than its factorization.

22166925320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37878 (or 37874 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 22166925320 in words is "twenty-two billion, one hundred sixty-six million, nine hundred twenty-five thousand, three hundred twenty".