18016500303 has 16 divisors (see below), whose sum is σ = 26861124960. Its totient is φ = 11934494208.

The previous prime is 18016500247. The next prime is 18016500311. The reversal of 18016500303 is 30300561081.

18016500303 is a `hidden beast` number, since 1 + 8 + 0 + 1 + 650 + 0 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 18016500303 - 2¹⁶ = 18016434767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18016500503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2120850 + ... + 2129327.

It is an arithmetic number, because the mean of its divisors is an integer number (1678820310).

Almost surely, 2^18016500303 is an apocalyptic number.

18016500303 is a deficient number, since it is larger than the sum of its proper divisors (8844624657).

18016500303 is a wasteful number, since it uses less digits than its factorization.

18016500303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250343 (or 4250337 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 18016500303 in words is "eighteen billion, sixteen million, five hundred thousand, three hundred three".