564243216536351 has 4 divisors (see below), whose sum is σ = 615538054403304. Its totient is φ = 512948378669400.

The previous prime is 564243216536339. The next prime is 564243216536353. The reversal of 564243216536351 is 153635612342465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564243216536351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564243216536353) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25647418933460 + ... + 25647418933481.

It is an arithmetic number, because the mean of its divisors is an integer number (153884513600826).

Almost surely, 2^{564243216536351} is an apocalyptic number.

564243216536351 is a deficient number, since it is larger than the sum of its proper divisors (51294837866953).

564243216536351 is a wasteful number, since it uses less digits than its factorization.

564243216536351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51294837866952.

The product of its digits is 46656000, while the sum is 56.

The spelling of 564243216536351 in words is "five hundred sixty-four trillion, two hundred forty-three billion, two hundred sixteen million, five hundred thirty-six thousand, three hundred fifty-one".