18255116 has 12 divisors (see below), whose sum is σ = 34850760. Its totient is φ = 8297760.

The previous prime is 18255101. The next prime is 18255119. The reversal of 18255116 is 61155281.

It is not an unprimeable number, because it can be changed into a prime (18255119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207401 + ... + 207488.

It is an arithmetic number, because the mean of its divisors is an integer number (2904230).

Almost surely, 2^18255116 is an apocalyptic number.

It is an amenable number.

18255116 is a deficient number, since it is larger than the sum of its proper divisors (16595644).

18255116 is a wasteful number, since it uses less digits than its factorization.

18255116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414904 (or 414902 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

The square root of 18255116 is about 4272.6006132097. The cubic root of 18255116 is about 263.3064709375.

The spelling of 18255116 in words is "eighteen million, two hundred fifty-five thousand, one hundred sixteen".