564400064 has 28 divisors (see below), whose sum is σ = 1143816864. Its totient is φ = 276194304.

The previous prime is 564400063. The next prime is 564400079. The reversal of 564400064 is 460004465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564400063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90809 + ... + 96824.

Almost surely, 2^564400064 is an apocalyptic number.

It is an amenable number.

564400064 is an abundant number, since it is smaller than the sum of its proper divisors (579416800).

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

564400064 is a wasteful number, since it uses less digits than its factorization.

564400064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187692 (or 187682 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 564400064 is about 23757.1055476041. The cubic root of 564400064 is about 826.4102303227.

The spelling of 564400064 in words is "five hundred sixty-four million, four hundred thousand, sixty-four".