115666061555159 has 2 divisors, whose sum is σ = 115666061555160. Its totient is φ = 115666061555158.

The previous prime is 115666061554949. The next prime is 115666061555203. The reversal of 115666061555159 is 951555160666511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115666061555159 - 2²⁸ = 115665793119703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115666061554159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57833030777579 + 57833030777580.

It is an arithmetic number, because the mean of its divisors is an integer number (57833030777580).

Almost surely, 2^{115666061555159} is an apocalyptic number.

115666061555159 is a deficient number, since it is larger than the sum of its proper divisors (1).

115666061555159 is an equidigital number, since it uses as much as digits as its factorization.

115666061555159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450000, while the sum is 62.

The spelling of 115666061555159 in words is "one hundred fifteen trillion, six hundred sixty-six billion, sixty-one million, five hundred fifty-five thousand, one hundred fifty-nine".