564636664 has 8 divisors (see below), whose sum is σ = 1058693760. Its totient is φ = 282318328.

The previous prime is 564636647. The next prime is 564636713. The reversal of 564636664 is 466636465.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35289784 + ... + 35289799.

It is an arithmetic number, because the mean of its divisors is an integer number (132336720).

Almost surely, 2^564636664 is an apocalyptic number.

It is an amenable number.

564636664 is a deficient number, since it is larger than the sum of its proper divisors (494057096).

564636664 is a wasteful number, since it uses less digits than its factorization.

564636664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70579589 (or 70579585 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 46.

The square root of 564636664 is about 23762.0845886888. The cubic root of 564636664 is about 826.5256929511.

The spelling of 564636664 in words is "five hundred sixty-four million, six hundred thirty-six thousand, six hundred sixty-four".