56578181156 has 48 divisors (see below), whose sum is σ = 119267043840. Its totient is φ = 22969914240.

The previous prime is 56578181129. The next prime is 56578181173. The reversal of 56578181156 is 65118187565.

It is a super-3 number, since 3×56578181156³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 56578181098 and 56578181107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614300 + ... + 700371.

It is an arithmetic number, because the mean of its divisors is an integer number (2484730080).

Almost surely, 2^56578181156 is an apocalyptic number.

It is an amenable number.

56578181156 is an abundant number, since it is smaller than the sum of its proper divisors (62688862684).

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

56578181156 is a wasteful number, since it uses less digits than its factorization.

56578181156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314764 (or 1314762 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 53.

The spelling of 56578181156 in words is "fifty-six billion, five hundred seventy-eight million, one hundred eighty-one thousand, one hundred fifty-six".