111643075868 has 12 divisors (see below), whose sum is σ = 197848489440. Its totient is φ = 55114936032.

The previous prime is 111643075861. The next prime is 111643075877. The reversal of 111643075868 is 868570346111.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111643075861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176650121 + ... + 176650752.

It is an arithmetic number, because the mean of its divisors is an integer number (16487374120).

Almost surely, 2^111643075868 is an apocalyptic number.

It is an amenable number.

111643075868 is a deficient number, since it is larger than the sum of its proper divisors (86205413572).

111643075868 is a wasteful number, since it uses less digits than its factorization.

111643075868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353300956 (or 353300954 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 111643075868 in words is "one hundred eleven billion, six hundred forty-three million, seventy-five thousand, eight hundred sixty-eight".