115565116505589 has 32 divisors (see below), whose sum is σ = 174018610310400. Its totient is φ = 75778510495680.

The previous prime is 115565116505561. The next prime is 115565116505603. The reversal of 115565116505589 is 985505611565511.

115565116505589 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 6 + 5 + 11 + 65 + 0 + 558 + 9 = 666.

It is not a de Polignac number, because 115565116505589 - 2¹² = 115565116501493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115565116505539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66626272 + ... + 68338790.

It is an arithmetic number, because the mean of its divisors is an integer number (5438081572200).

Almost surely, 2^{115565116505589} is an apocalyptic number.

It is an amenable number.

115565116505589 is a deficient number, since it is larger than the sum of its proper divisors (58453493804811).

115565116505589 is a wasteful number, since it uses less digits than its factorization.

115565116505589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753562 (or 1753556 counting only the distinct ones).

The product of its (nonzero) digits is 40500000, while the sum is 63.

The spelling of 115565116505589 in words is "one hundred fifteen trillion, five hundred sixty-five billion, one hundred sixteen million, five hundred five thousand, five hundred eighty-nine".