564938839466 has 16 divisors (see below), whose sum is σ = 855362185056. Its totient is φ = 279818322576.

The previous prime is 564938839427. The next prime is 564938839483. The reversal of 564938839466 is 664938839465.

It is a self number, because there is not a number n which added to its sum of digits gives 564938839466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8655245 + ... + 8720271.

It is an arithmetic number, because the mean of its divisors is an integer number (53460136566).

Almost surely, 2^564938839466 is an apocalyptic number.

564938839466 is a deficient number, since it is larger than the sum of its proper divisors (290423345590).

564938839466 is a wasteful number, since it uses less digits than its factorization.

564938839466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105733.

The product of its digits is 806215680, while the sum is 71.

Subtracting 564938839466 from its reverse (664938839465), we obtain a palindrome (99999999999).

The spelling of 564938839466 in words is "five hundred sixty-four billion, nine hundred thirty-eight million, eight hundred thirty-nine thousand, four hundred sixty-six".