186540658107157 has 2 divisors, whose sum is σ = 186540658107158. Its totient is φ = 186540658107156.

The previous prime is 186540658107151. The next prime is 186540658107161. The reversal of 186540658107157 is 751701856045681.

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., 147103689934161 + 39436968172996 = 12128631^2 + 6279886^2 .

It is a cyclic number.

It is not a de Polignac number, because 186540658107157 - 2²⁷ = 186540523889429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (186540658107151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93270329053578 + 93270329053579.

It is an arithmetic number, because the mean of its divisors is an integer number (93270329053579).

Almost surely, 2^{186540658107157} is an apocalyptic number.

It is an amenable number.

186540658107157 is a deficient number, since it is larger than the sum of its proper divisors (1).

186540658107157 is an equidigital number, since it uses as much as digits as its factorization.

186540658107157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448000, while the sum is 64.

The spelling of 186540658107157 in words is "one hundred eighty-six trillion, five hundred forty billion, six hundred fifty-eight million, one hundred seven thousand, one hundred fifty-seven".