111156668 has 24 divisors (see below), whose sum is σ = 222724992. Its totient is φ = 47550384.

The previous prime is 111156653. The next prime is 111156691. The reversal of 111156668 is 866651111.

It is a plaindrome in base 10.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 13055 + ... + 19817.

It is an arithmetic number, because the mean of its divisors is an integer number (9280208).

Almost surely, 2^111156668 is an apocalyptic number.

It is an amenable number.

111156668 is an abundant number, since it is smaller than the sum of its proper divisors (111568324).

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

111156668 is a wasteful number, since it uses less digits than its factorization.

111156668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361 (or 7359 counting only the distinct ones).

The product of its digits is 8640, while the sum is 35.

The square root of 111156668 is about 10543.0862654158. The cubic root of 111156668 is about 480.8155521947.

The spelling of 111156668 in words is "one hundred eleven million, one hundred fifty-six thousand, six hundred sixty-eight".