22920815604 has 72 divisors (see below), whose sum is σ = 56626341408. Its totient is φ = 7214886720.

The previous prime is 22920815543. The next prime is 22920815627. The reversal of 22920815604 is 40651802922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1364899 + ... + 1381589.

It is an arithmetic number, because the mean of its divisors is an integer number (786476964).

Almost surely, 2^22920815604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22920815604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28313170704).

22920815604 is an abundant number, since it is smaller than the sum of its proper divisors (33705525804).

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

22920815604 is a wasteful number, since it uses less digits than its factorization.

22920815604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17053 (or 17032 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 22920815604 in words is "twenty-two billion, nine hundred twenty million, eight hundred fifteen thousand, six hundred four".