111685686674 has 16 divisors (see below), whose sum is σ = 168124723200. Its totient is φ = 55644168240.

The previous prime is 111685686667. The next prime is 111685686677. The reversal of 111685686674 is 476686586111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111685686677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7492769 + ... + 7507659.

It is an arithmetic number, because the mean of its divisors is an integer number (10507795200).

Almost surely, 2^111685686674 is an apocalyptic number.

111685686674 is a deficient number, since it is larger than the sum of its proper divisors (56439036526).

111685686674 is a wasteful number, since it uses less digits than its factorization.

111685686674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27985.

The product of its digits is 11612160, while the sum is 59.

The spelling of 111685686674 in words is "one hundred eleven billion, six hundred eighty-five million, six hundred eighty-six thousand, six hundred seventy-four".