564216463245566 has 32 divisors (see below), whose sum is σ = 901609491888000. Its totient is φ = 264038069792160.

The previous prime is 564216463245551. The next prime is 564216463245581. The reversal of 564216463245566 is 665542364612465.

It is an interprime number because it is at equal distance from previous prime (564216463245551) and next prime (564216463245581).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381997661 + ... + 383471831.

It is an arithmetic number, because the mean of its divisors is an integer number (28175296621500).

Almost surely, 2^{564216463245566} is an apocalyptic number.

564216463245566 is a deficient number, since it is larger than the sum of its proper divisors (337393028642434).

564216463245566 is a wasteful number, since it uses less digits than its factorization.

564216463245566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595624.

The product of its digits is 746496000, while the sum is 65.

The spelling of 564216463245566 in words is "five hundred sixty-four trillion, two hundred sixteen billion, four hundred sixty-three million, two hundred forty-five thousand, five hundred sixty-six".