111668667 has 8 divisors (see below), whose sum is σ = 162427200. Its totient is φ = 67677960.

The previous prime is 111668659. The next prime is 111668671. The reversal of 111668667 is 766866111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111668667 - 2³ = 111668659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111668677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691917 + ... + 1691982.

It is an arithmetic number, because the mean of its divisors is an integer number (20303400).

Almost surely, 2^111668667 is an apocalyptic number.

111668667 is a deficient number, since it is larger than the sum of its proper divisors (50758533).

111668667 is a wasteful number, since it uses less digits than its factorization.

111668667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383913.

The product of its digits is 72576, while the sum is 42.

The square root of 111668667 is about 10567.3396368244. The cubic root of 111668667 is about 481.5526501973.

The spelling of 111668667 in words is "one hundred eleven million, six hundred sixty-eight thousand, six hundred sixty-seven".