115566858309952 has 56 divisors (see below), whose sum is σ = 267437882801600. Its totient is φ = 49528653552000.

The previous prime is 115566858309899. The next prime is 115566858309977. The reversal of 115566858309952 is 259903858665511.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2632240674 + ... + 2632284577.

It is an arithmetic number, because the mean of its divisors is an integer number (4775676478600).

Almost surely, 2^{115566858309952} is an apocalyptic number.

It is an amenable number.

115566858309952 is an abundant number, since it is smaller than the sum of its proper divisors (151871024491648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115566858309952 is an frugal number, since it uses more digits than its factorization.

115566858309952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264525284 (or 5264525260 counting only the distinct ones).

The product of its (nonzero) digits is 699840000, while the sum is 73.

The spelling of 115566858309952 in words is "one hundred fifteen trillion, five hundred sixty-six billion, eight hundred fifty-eight million, three hundred nine thousand, nine hundred fifty-two".