111878087056 has 10 divisors (see below), whose sum is σ = 216763793702. Its totient is φ = 55939043520.

The previous prime is 111878087033. The next prime is 111878087107. The reversal of 111878087056 is 650780878111.

It can be written as a sum of positive squares in only one way, i.e., 57254918400 + 54623168656 = 239280^2 + 233716^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111878086994 and 111878087012.

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 as a sum of consecutive naturals, namely, 3496190205 + ... + 3496190236.

Almost surely, 2^111878087056 is an apocalyptic number.

111878087056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

111878087056 is a deficient number, since it is larger than the sum of its proper divisors (104885706646).

111878087056 is an equidigital number, since it uses as much as digits as its factorization.

111878087056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992380449 (or 6992380443 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 52.

The spelling of 111878087056 in words is "one hundred eleven billion, eight hundred seventy-eight million, eighty-seven thousand, fifty-six".