18116799 has 8 divisors (see below), whose sum is σ = 24179760. Its totient is φ = 12065856.

The previous prime is 18116797. The next prime is 18116807. The reversal of 18116799 is 99761181.

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

It is not a de Polignac number, because 18116799 - 2¹ = 18116797 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 18116799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467 + ... + 6195.

It is an arithmetic number, because the mean of its divisors is an integer number (3022470).

Almost surely, 2^18116799 is an apocalyptic number.

18116799 is a deficient number, since it is larger than the sum of its proper divisors (6062961).

18116799 is a wasteful number, since it uses less digits than its factorization.

18116799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009.

The product of its digits is 27216, while the sum is 42.

The square root of 18116799 is about 4256.3833239031. The cubic root of 18116799 is about 262.6397695567.

It can be divided in two parts, 18116 and 799, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 18116799 in words is "eighteen million, one hundred sixteen thousand, seven hundred ninety-nine".