564281668 has 12 divisors (see below), whose sum is σ = 990865260. Its totient is φ = 281177312.

The previous prime is 564281633. The next prime is 564281677. The reversal of 564281668 is 866182465.

It can be written as a sum of positive squares in 2 ways, for example, as 341436484 + 222845184 = 18478^2 + 14928^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239563 + ... + 241906.

It is an arithmetic number, because the mean of its divisors is an integer number (82572105).

Almost surely, 2^564281668 is an apocalyptic number.

It is an amenable number.

564281668 is a deficient number, since it is larger than the sum of its proper divisors (426583592).

564281668 is a wasteful number, since it uses less digits than its factorization.

564281668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481766 (or 481764 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 564281668 is about 23754.6136150433. The cubic root of 564281668 is about 826.3524400458.

The spelling of 564281668 in words is "five hundred sixty-four million, two hundred eighty-one thousand, six hundred sixty-eight".