115573307721885 has 72 divisors (see below), whose sum is σ = 223919699387904. Its totient is φ = 55062220936320.

The previous prime is 115573307721853. The next prime is 115573307722057. The reversal of 115573307721885 is 588127703375511.

115573307721885 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 7 + 330 + 7 + 7 + 218 + 85 = 666.

It is not a de Polignac number, because 115573307721885 - 2⁵ = 115573307721853 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 244877409 + ... + 245348918.

It is an arithmetic number, because the mean of its divisors is an integer number (3109995824832).

Almost surely, 2^{115573307721885} is an apocalyptic number.

115573307721885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115573307721885 is a deficient number, since it is larger than the sum of its proper divisors (108346391666019).

115573307721885 is a wasteful number, since it uses less digits than its factorization.

115573307721885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490226395 (or 490226379 counting only the distinct ones).

The product of its (nonzero) digits is 49392000, while the sum is 63.

The spelling of 115573307721885 in words is "one hundred fifteen trillion, five hundred seventy-three billion, three hundred seven million, seven hundred twenty-one thousand, eight hundred eighty-five".