22164595620 has 96 divisors (see below), whose sum is σ = 63189479808. Its totient is φ = 5803640832.

The previous prime is 22164595619. The next prime is 22164595637. The reversal of 22164595620 is 2659546122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1265644 + ... + 1283036.

It is an arithmetic number, because the mean of its divisors is an integer number (658223748).

Almost surely, 2^22164595620 is an apocalyptic number.

22164595620 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 22164595620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31594739904).

22164595620 is an abundant number, since it is smaller than the sum of its proper divisors (41024884188).

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

22164595620 is a wasteful number, since it uses less digits than its factorization.

22164595620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17789 (or 17787 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 22164595620 in words is "twenty-two billion, one hundred sixty-four million, five hundred ninety-five thousand, six hundred twenty".