116565105161 has 2 divisors, whose sum is σ = 116565105162. Its totient is φ = 116565105160.

The previous prime is 116565105149. The next prime is 116565105169. The reversal of 116565105161 is 161501565611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90790729225 + 25774375936 = 301315^2 + 160544^2 .

It is a cyclic number.

It is not a de Polignac number, because 116565105161 - 2¹⁰ = 116565104137 is a prime.

It is not a weakly prime, because it can be changed into another prime (116565105169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58282552580 + 58282552581.

It is an arithmetic number, because the mean of its divisors is an integer number (58282552581).

Almost surely, 2^116565105161 is an apocalyptic number.

It is an amenable number.

116565105161 is a deficient number, since it is larger than the sum of its proper divisors (1).

116565105161 is an equidigital number, since it uses as much as digits as its factorization.

116565105161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 116565105161 in words is "one hundred sixteen billion, five hundred sixty-five million, one hundred five thousand, one hundred sixty-one".