12959158943556 has 144 divisors (see below), whose sum is σ = 40918483307520. Its totient is φ = 3372402401280.

The previous prime is 12959158943527. The next prime is 12959158943561. The reversal of 12959158943556 is 65534985195921.

12959158943556 is a `hidden beast` number, since 1 + 2 + 9 + 5 + 9 + 1 + 589 + 4 + 35 + 5 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48657741 + ... + 48923348.

It is an arithmetic number, because the mean of its divisors is an integer number (284156134080).

Almost surely, 2^{12959158943556} is an apocalyptic number.

It is an amenable number.

12959158943556 is an abundant number, since it is smaller than the sum of its proper divisors (27959324363964).

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

12959158943556 is a wasteful number, since it uses less digits than its factorization.

12959158943556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97581154 (or 97581149 counting only the distinct ones).

The product of its digits is 524880000, while the sum is 72.

The spelling of 12959158943556 in words is "twelve trillion, nine hundred fifty-nine billion, one hundred fifty-eight million, nine hundred forty-three thousand, five hundred fifty-six".