111889656 has 96 divisors (see below), whose sum is σ = 321375600. Its totient is φ = 35105280.

The previous prime is 111889649. The next prime is 111889663. The reversal of 111889656 is 656988111.

It is an interprime number because it is at equal distance from previous prime (111889649) and next prime (111889663).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84955 + ... + 86261.

Almost surely, 2^111889656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111889656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160687800).

111889656 is an abundant number, since it is smaller than the sum of its proper divisors (209485944).

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

111889656 is a wasteful number, since it uses less digits than its factorization.

111889656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389 (or 1382 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 111889656 is about 10577.7906956037. The cubic root of 111889656 is about 481.8701003807.

The spelling of 111889656 in words is "one hundred eleven million, eight hundred eighty-nine thousand, six hundred fifty-six".