561352612775065 has 24 divisors (see below), whose sum is σ = 726959451152088. Its totient is φ = 414690675809280.

The previous prime is 561352612775051. The next prime is 561352612775069. The reversal of 561352612775065 is 560577216253165.

It can be written as a sum of positive squares in 12 ways, for example, as 9224195082496 + 552128417692569 = 3037136^2 + 23497413^2 .

It is not a de Polignac number, because 561352612775065 - 2⁷ = 561352612774937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561352612774994 and 561352612775012.

It is not an unprimeable number, because it can be changed into a prime (561352612775069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1175294946 + ... + 1175772475.

It is an arithmetic number, because the mean of its divisors is an integer number (30289977131337).

Almost surely, 2^{561352612775065} is an apocalyptic number.

It is an amenable number.

561352612775065 is a deficient number, since it is larger than the sum of its proper divisors (165606838377023).

561352612775065 is a wasteful number, since it uses less digits than its factorization.

561352612775065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351067549 (or 2351067496 counting only the distinct ones).

The product of its (nonzero) digits is 79380000, while the sum is 61.

The spelling of 561352612775065 in words is "five hundred sixty-one trillion, three hundred fifty-two billion, six hundred twelve million, seven hundred seventy-five thousand, sixty-five".