8151660137 has 2 divisors, whose sum is σ = 8151660138. Its totient is φ = 8151660136.

The previous prime is 8151660067. The next prime is 8151660163. The reversal of 8151660137 is 7310661518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5917301776 + 2234358361 = 76924^2 + 47269^2 .

It is a cyclic number.

It is not a de Polignac number, because 8151660137 - 2²⁸ = 7883224681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8151660137.

It is not a weakly prime, because it can be changed into another prime (8151600137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4075830068 + 4075830069.

It is an arithmetic number, because the mean of its divisors is an integer number (4075830069).

Almost surely, 2^8151660137 is an apocalyptic number.

It is an amenable number.

8151660137 is a deficient number, since it is larger than the sum of its proper divisors (1).

8151660137 is an equidigital number, since it uses as much as digits as its factorization.

8151660137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 8151660137 is about 90286.5446066024. The cubic root of 8151660137 is about 2012.5593115089.

The spelling of 8151660137 in words is "eight billion, one hundred fifty-one million, six hundred sixty thousand, one hundred thirty-seven".