56156676778 has 8 divisors (see below), whose sum is σ = 84352173120. Its totient is φ = 28039285740.

The previous prime is 56156676757. The next prime is 56156676787. The reversal of 56156676778 is 87767665165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56156676778² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 19524528 + ... + 19527403.

It is an arithmetic number, because the mean of its divisors is an integer number (10544021640).

Almost surely, 2^56156676778 is an apocalyptic number.

56156676778 is a deficient number, since it is larger than the sum of its proper divisors (28195496342).

56156676778 is a wasteful number, since it uses less digits than its factorization.

56156676778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39052652.

The product of its digits is 88905600, while the sum is 64.

The spelling of 56156676778 in words is "fifty-six billion, one hundred fifty-six million, six hundred seventy-six thousand, seven hundred seventy-eight".