22745321856 has 64 divisors (see below), whose sum is σ = 67130300400. Its totient is φ = 7581772800.

The previous prime is 22745321849. The next prime is 22745321861. The reversal of 22745321856 is 65812354722.

22745321856 is a `hidden beast` number, since 2 + 274 + 5 + 321 + 8 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3287245 + ... + 3294156.

Almost surely, 2^22745321856 is an apocalyptic number.

It is an amenable number.

22745321856 is an abundant number, since it is smaller than the sum of its proper divisors (44384978544).

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

22745321856 is an equidigital number, since it uses as much as digits as its factorization.

22745321856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581424 (or 6581406 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The spelling of 22745321856 in words is "twenty-two billion, seven hundred forty-five million, three hundred twenty-one thousand, eight hundred fifty-six".