16491118 has 16 divisors (see below), whose sum is σ = 28344960. Its totient is φ = 7049016.

The previous prime is 16491089. The next prime is 16491133. The reversal of 16491118 is 81119461.

It is a self number, because there is not a number n which added to its sum of digits gives 16491118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4873 + ... + 7531.

It is an arithmetic number, because the mean of its divisors is an integer number (1771560).

Almost surely, 2^16491118 is an apocalyptic number.

16491118 is a deficient number, since it is larger than the sum of its proper divisors (11853842).

16491118 is a wasteful number, since it uses less digits than its factorization.

16491118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111.

The product of its digits is 1728, while the sum is 31.

The square root of 16491118 is about 4060.9257565240. The cubic root of 16491118 is about 254.5364794996.

The spelling of 16491118 in words is "sixteen million, four hundred ninety-one thousand, one hundred eighteen".