564646466 has 24 divisors (see below), whose sum is σ = 901548480. Its totient is φ = 265177152.

The previous prime is 564646451. The next prime is 564646469. The reversal of 564646466 is 664646465.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 564646466.

It is not an unprimeable number, because it can be changed into a prime (564646469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530651 + ... + 531713.

It is an arithmetic number, because the mean of its divisors is an integer number (37564520).

Almost surely, 2^564646466 is an apocalyptic number.

564646466 is a deficient number, since it is larger than the sum of its proper divisors (336902014).

564646466 is a wasteful number, since it uses less digits than its factorization.

564646466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2001 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The square root of 564646466 is about 23762.2908407418. The cubic root of 564646466 is about 826.5304757070.

Subtracting 564646466 from its reverse (664646465), we obtain a palindrome (99999999).

The spelling of 564646466 in words is "five hundred sixty-four million, six hundred forty-six thousand, four hundred sixty-six".