22642222680 has 512 divisors, whose sum is σ = 97144012800. Its totient is φ = 4552588800.

The previous prime is 22642222679. The next prime is 22642222747. The reversal of 22642222680 is 8622224622.

It is a happy number.

22642222680 is a `hidden beast` number, since 2 + 2 + 6 + 422 + 226 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2573569 + ... + 2582351.

It is an arithmetic number, because the mean of its divisors is an integer number (189734400).

Almost surely, 2^22642222680 is an apocalyptic number.

22642222680 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 22642222680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48572006400).

22642222680 is an abundant number, since it is smaller than the sum of its proper divisors (74501790120).

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

22642222680 is a wasteful number, since it uses less digits than its factorization.

22642222680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8852 (or 8842 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 22642222680 in words is "twenty-two billion, six hundred forty-two million, two hundred twenty-two thousand, six hundred eighty".