111279664 has 20 divisors (see below), whose sum is σ = 219260520. Its totient is φ = 54696320.

The previous prime is 111279631. The next prime is 111279703. The reversal of 111279664 is 466972111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57997 + ... + 59884.

It is an arithmetic number, because the mean of its divisors is an integer number (10963026).

Almost surely, 2^111279664 is an apocalyptic number.

It is an amenable number.

111279664 is a deficient number, since it is larger than the sum of its proper divisors (107980856).

111279664 is a wasteful number, since it uses less digits than its factorization.

111279664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117948 (or 117942 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 111279664 is about 10548.9176696000. The cubic root of 111279664 is about 480.9928292809.

The spelling of 111279664 in words is "one hundred eleven million, two hundred seventy-nine thousand, six hundred sixty-four".