91162335116137 has 2 divisors, whose sum is σ = 91162335116138. Its totient is φ = 91162335116136.

The previous prime is 91162335116071. The next prime is 91162335116197. The reversal of 91162335116137 is 73161153326119.

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., 88737699964761 + 2424635151376 = 9420069^2 + 1557124^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91162335116137 is a prime.

It is not a weakly prime, because it can be changed into another prime (91162335116197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45581167558068 + 45581167558069.

It is an arithmetic number, because the mean of its divisors is an integer number (45581167558069).

Almost surely, 2^{91162335116137} is an apocalyptic number.

It is an amenable number.

91162335116137 is a deficient number, since it is larger than the sum of its proper divisors (1).

91162335116137 is an equidigital number, since it uses as much as digits as its factorization.

91162335116137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 49.

The spelling of 91162335116137 in words is "ninety-one trillion, one hundred sixty-two billion, three hundred thirty-five million, one hundred sixteen thousand, one hundred thirty-seven".