22546920564 has 180 divisors, whose sum is σ = 69730325280. Its totient is φ = 6332528160.

The previous prime is 22546920559. The next prime is 22546920611. The reversal of 22546920564 is 46502964522.

22546920564 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 69 + 20 + 564 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 924649 + ... + 948719.

It is an arithmetic number, because the mean of its divisors is an integer number (387390696).

Almost surely, 2^22546920564 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 22546920564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34865162640).

22546920564 is an abundant number, since it is smaller than the sum of its proper divisors (47183404716).

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

22546920564 is a wasteful number, since it uses less digits than its factorization.

22546920564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24160 (or 24142 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 22546920564 in words is "twenty-two billion, five hundred forty-six million, nine hundred twenty thousand, five hundred sixty-four".