18016163 has 8 divisors (see below), whose sum is σ = 20332080. Its totient is φ = 15813280.

The previous prime is 18016157. The next prime is 18016169. The reversal of 18016163 is 36161081.

It is an interprime number because it is at equal distance from previous prime (18016157) and next prime (18016169).

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

It is a cyclic number.

It is not a de Polignac number, because 18016163 - 2⁴ = 18016147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18016169) 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, 27920 + ... + 28557.

It is an arithmetic number, because the mean of its divisors is an integer number (2541510).

Almost surely, 2^18016163 is an apocalyptic number.

18016163 is a deficient number, since it is larger than the sum of its proper divisors (2315917).

18016163 is a wasteful number, since it uses less digits than its factorization.

18016163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56517.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 18016163 is about 4244.5450875212. The cubic root of 18016163 is about 262.1525586260.

The spelling of 18016163 in words is "eighteen million, sixteen thousand, one hundred sixty-three".