564744557161 has 2 divisors, whose sum is σ = 564744557162. Its totient is φ = 564744557160.

The previous prime is 564744557119. The next prime is 564744557197. The reversal of 564744557161 is 161755447465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536878598400 + 27865958761 = 732720^2 + 166931^2 .

It is a cyclic number.

It is not a de Polignac number, because 564744557161 - 2¹⁷ = 564744426089 is a prime.

It is not a weakly prime, because it can be changed into another prime (564744557101) by changing a digit.

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 as a sum of consecutive naturals, namely, 282372278580 + 282372278581.

It is an arithmetic number, because the mean of its divisors is an integer number (282372278581).

Almost surely, 2^564744557161 is an apocalyptic number.

It is an amenable number.

564744557161 is a deficient number, since it is larger than the sum of its proper divisors (1).

564744557161 is an equidigital number, since it uses as much as digits as its factorization.

564744557161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112000, while the sum is 55.

The spelling of 564744557161 in words is "five hundred sixty-four billion, seven hundred forty-four million, five hundred fifty-seven thousand, one hundred sixty-one".