18168055 has 16 divisors (see below), whose sum is σ = 22320864. Its totient is φ = 14192640.

The previous prime is 18168049. The next prime is 18168061. The reversal of 18168055 is 55086181.

It is an interprime number because it is at equal distance from previous prime (18168049) and next prime (18168061).

It is not a de Polignac number, because 18168055 - 2⁵ = 18168023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18168055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64515 + ... + 64795.

It is an arithmetic number, because the mean of its divisors is an integer number (1395054).

Almost surely, 2^18168055 is an apocalyptic number.

18168055 is a deficient number, since it is larger than the sum of its proper divisors (4152809).

18168055 is a wasteful number, since it uses less digits than its factorization.

18168055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 18168055 is about 4262.4001454580. The cubic root of 18168055 is about 262.8872229197.

The spelling of 18168055 in words is "eighteen million, one hundred sixty-eight thousand, fifty-five".