6565715561131 has 2 divisors, whose sum is σ = 6565715561132. Its totient is φ = 6565715561130.

The previous prime is 6565715561101. The next prime is 6565715561219. The reversal of 6565715561131 is 1311655175656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6565715561131 - 2¹³ = 6565715552939 is a prime.

It is a super-2 number, since 2×6565715561131² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6565715561101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282857780565 + 3282857780566.

It is an arithmetic number, because the mean of its divisors is an integer number (3282857780566).

Almost surely, 2^{6565715561131} is an apocalyptic number.

6565715561131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6565715561131 is an equidigital number, since it uses as much as digits as its factorization.

6565715561131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835000, while the sum is 52.

The spelling of 6565715561131 in words is "six trillion, five hundred sixty-five billion, seven hundred fifteen million, five hundred sixty-one thousand, one hundred thirty-one".