22660424660 has 48 divisors (see below), whose sum is σ = 48730281600. Its totient is φ = 8846699904.

The previous prime is 22660424639. The next prime is 22660424713. The reversal of 22660424660 is 6642406622.

It is a happy number.

It is a super-2 number, since 2×22660424660² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219721 + ... + 1238159.

It is an arithmetic number, because the mean of its divisors is an integer number (1015214200).

Almost surely, 2^22660424660 is an apocalyptic number.

22660424660 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 22660424660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24365140800).

22660424660 is an abundant number, since it is smaller than the sum of its proper divisors (26069856940).

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

22660424660 is a wasteful number, since it uses less digits than its factorization.

22660424660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19920 (or 19918 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 22660424660 in words is "twenty-two billion, six hundred sixty million, four hundred twenty-four thousand, six hundred sixty".