22641659296920 has 128 divisors (see below), whose sum is σ = 75738884889600. Its totient is φ = 6016440834432.

The previous prime is 22641659296889. The next prime is 22641659296937. The reversal of 22641659296920 is 2969295614622.

It is a happy number.

22641659296920 is a `hidden beast` number, since 2 + 2 + 6 + 4 + 16 + 592 + 9 + 6 + 9 + 20 = 666.

It is a congruent number.

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, 36734112 + ... + 37345391.

It is an arithmetic number, because the mean of its divisors is an integer number (591710038200).

Almost surely, 2^{22641659296920} is an apocalyptic number.

22641659296920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22641659296920 is an abundant number, since it is smaller than the sum of its proper divisors (53097225592680).

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

22641659296920 is a wasteful number, since it uses less digits than its factorization.

22641659296920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74079806 (or 74079796 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 63.

The spelling of 22641659296920 in words is "twenty-two trillion, six hundred forty-one billion, six hundred fifty-nine million, two hundred ninety-six thousand, nine hundred twenty".