22162638580 has 12 divisors (see below), whose sum is σ = 46541541060. Its totient is φ = 8865055424.

The previous prime is 22162638529. The next prime is 22162638581. The reversal of 22162638580 is 8583626122.

It can be written as a sum of positive squares in 2 ways, for example, as 17212390416 + 4950248164 = 131196^2 + 70358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22162638581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554065945 + ... + 554065984.

It is an arithmetic number, because the mean of its divisors is an integer number (3878461755).

Almost surely, 2^22162638580 is an apocalyptic number.

22162638580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22162638580 is an abundant number, since it is smaller than the sum of its proper divisors (24378902480).

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

22162638580 is a wasteful number, since it uses less digits than its factorization.

22162638580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108131938 (or 1108131936 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 22162638580 in words is "twenty-two billion, one hundred sixty-two million, six hundred thirty-eight thousand, five hundred eighty".