564320920128 has 112 divisors (see below), whose sum is σ = 1741223644800. Its totient is φ = 161234529792.

The previous prime is 564320920123. The next prime is 564320920139. The reversal of 564320920128 is 821029023465.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×564320920128² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 564320920128.

It is not an unprimeable number, because it can be changed into a prime (564320920123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4218651 + ... + 4350362.

Almost surely, 2^564320920128 is an apocalyptic number.

It is an amenable number.

564320920128 is an abundant number, since it is smaller than the sum of its proper divisors (1176902724672).

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

564320920128 is an equidigital number, since it uses as much as digits as its factorization.

564320920128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569049 (or 8569025 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 564320920128 in words is "five hundred sixty-four billion, three hundred twenty million, nine hundred twenty thousand, one hundred twenty-eight".