56015000661156 has 48 divisors (see below), whose sum is σ = 134836092808704. Its totient is φ = 18085560719616.

The previous prime is 56015000661083. The next prime is 56015000661227. The reversal of 56015000661156 is 65116600051065.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282770745 + ... + 282968768.

It is an arithmetic number, because the mean of its divisors is an integer number (2809085266848).

Almost surely, 2^{56015000661156} is an apocalyptic number.

It is an amenable number.

56015000661156 is an abundant number, since it is smaller than the sum of its proper divisors (78821092147548).

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

56015000661156 is a wasteful number, since it uses less digits than its factorization.

56015000661156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565739780 (or 565739778 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 56015000661156 in words is "fifty-six trillion, fifteen billion, six hundred sixty-one thousand, one hundred fifty-six".