115745166040681 has 2 divisors, whose sum is σ = 115745166040682. Its totient is φ = 115745166040680.

The previous prime is 115745166040573. The next prime is 115745166040687. The reversal of 115745166040681 is 186040661547511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79241758382656 + 36503407658025 = 8901784^2 + 6041805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115745166040681 is a prime.

It is a super-2 number, since 2×115745166040681² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115745166040687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57872583020340 + 57872583020341.

It is an arithmetic number, because the mean of its divisors is an integer number (57872583020341).

Almost surely, 2^{115745166040681} is an apocalyptic number.

It is an amenable number.

115745166040681 is a deficient number, since it is larger than the sum of its proper divisors (1).

115745166040681 is an equidigital number, since it uses as much as digits as its factorization.

115745166040681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 115745166040681 in words is "one hundred fifteen trillion, seven hundred forty-five billion, one hundred sixty-six million, forty thousand, six hundred eighty-one".