16668118 has 8 divisors (see below), whose sum is σ = 25031880. Its totient is φ = 8324160.

The previous prime is 16668107. The next prime is 16668137. The reversal of 16668118 is 81186661.

It is a happy number.

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

It is a congruent number.

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, 2628 + ... + 6343.

It is an arithmetic number, because the mean of its divisors is an integer number (3128985).

Almost surely, 2^16668118 is an apocalyptic number.

16668118 is a deficient number, since it is larger than the sum of its proper divisors (8363762).

16668118 is an equidigital number, since it uses as much as digits as its factorization.

16668118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902.

The product of its digits is 13824, while the sum is 37.

The square root of 16668118 is about 4082.6606520748. The cubic root of 16668118 is about 255.4438917188.

The spelling of 16668118 in words is "sixteen million, six hundred sixty-eight thousand, one hundred eighteen".