565656516137 has 2 divisors, whose sum is σ = 565656516138. Its totient is φ = 565656516136.

The previous prime is 565656516107. The next prime is 565656516169. The reversal of 565656516137 is 731615656565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446362954816 + 119293561321 = 668104^2 + 345389^2 .

It is a cyclic number.

It is not a de Polignac number, because 565656516137 - 2¹⁸ = 565656253993 is a prime.

It is not a weakly prime, because it can be changed into another prime (565656516107) 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, 282828258068 + 282828258069.

It is an arithmetic number, because the mean of its divisors is an integer number (282828258069).

Almost surely, 2^565656516137 is an apocalyptic number.

It is an amenable number.

565656516137 is a deficient number, since it is larger than the sum of its proper divisors (1).

565656516137 is an equidigital number, since it uses as much as digits as its factorization.

565656516137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010000, while the sum is 56.

The spelling of 565656516137 in words is "five hundred sixty-five billion, six hundred fifty-six million, five hundred sixteen thousand, one hundred thirty-seven".