56156788518 has 32 divisors (see below), whose sum is σ = 115028998656. Its totient is φ = 18267143328.

The previous prime is 56156788481. The next prime is 56156788553. The reversal of 56156788518 is 81588765165.

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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190755 + ... + 385617.

It is an arithmetic number, because the mean of its divisors is an integer number (3594656208).

Almost surely, 2^56156788518 is an apocalyptic number.

56156788518 is an abundant number, since it is smaller than the sum of its proper divisors (58872210138).

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

56156788518 is a wasteful number, since it uses less digits than its factorization.

56156788518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196028.

The product of its digits is 16128000, while the sum is 60.

The spelling of 56156788518 in words is "fifty-six billion, one hundred fifty-six million, seven hundred eighty-eight thousand, five hundred eighteen".