564361566949 has 4 divisors (see below), whose sum is σ = 565300605100. Its totient is φ = 563422528800.

The previous prime is 564361566919. The next prime is 564361566953. The reversal of 564361566949 is 949665163465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 539316921924 + 25044645025 = 734382^2 + 158255^2 .

It is a cyclic number.

It is not a de Polignac number, because 564361566949 - 2¹⁵ = 564361534181 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 (564361566919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469518174 + ... + 469519375.

It is an arithmetic number, because the mean of its divisors is an integer number (141325151275).

Almost surely, 2^564361566949 is an apocalyptic number.

It is an amenable number.

564361566949 is a deficient number, since it is larger than the sum of its proper divisors (939038151).

564361566949 is an equidigital number, since it uses as much as digits as its factorization.

564361566949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939038150.

The product of its digits is 125971200, while the sum is 64.

The spelling of 564361566949 in words is "five hundred sixty-four billion, three hundred sixty-one million, five hundred sixty-six thousand, nine hundred forty-nine".