564111665 has 16 divisors (see below), whose sum is σ = 732478656. Its totient is φ = 414590400.

The previous prime is 564111631. The next prime is 564111671. The reversal of 564111665 is 566111465.

564111665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 564111665 - 2⁶ = 564111601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6851 + ... + 34280.

It is an arithmetic number, because the mean of its divisors is an integer number (45779916).

Almost surely, 2^564111665 is an apocalyptic number.

It is an amenable number.

564111665 is a deficient number, since it is larger than the sum of its proper divisors (168366991).

564111665 is a wasteful number, since it uses less digits than its factorization.

564111665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41360.

The product of its digits is 21600, while the sum is 35.

The square root of 564111665 is about 23751.0350300782. The cubic root of 564111665 is about 826.2694457351.

The spelling of 564111665 in words is "five hundred sixty-four million, one hundred eleven thousand, six hundred sixty-five".