564636311561 has 8 divisors (see below), whose sum is σ = 662739145920. Its totient is φ = 470893603248.

The previous prime is 564636311549. The next prime is 564636311599. The reversal of 564636311561 is 165113636465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 564636311561 - 2³⁰ = 563562569737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564636311461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1090031231 + ... + 1090031748.

It is an arithmetic number, because the mean of its divisors is an integer number (82842393240).

Almost surely, 2^564636311561 is an apocalyptic number.

It is an amenable number.

564636311561 is a deficient number, since it is larger than the sum of its proper divisors (98102834359).

564636311561 is a wasteful number, since it uses less digits than its factorization.

564636311561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180063023.

The product of its digits is 1166400, while the sum is 47.

The spelling of 564636311561 in words is "five hundred sixty-four billion, six hundred thirty-six million, three hundred eleven thousand, five hundred sixty-one".