18054663 has 16 divisors (see below), whose sum is σ = 27806976. Its totient is φ = 10298240.

The previous prime is 18054653. The next prime is 18054667. The reversal of 18054663 is 36645081.

It is a cyclic number.

It is not a de Polignac number, because 18054663 - 2⁶ = 18054599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18054667) 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 15 ways as a sum of consecutive naturals, for example, 15531 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (1737936).

Almost surely, 2^18054663 is an apocalyptic number.

18054663 is a deficient number, since it is larger than the sum of its proper divisors (9752313).

18054663 is a wasteful number, since it uses less digits than its factorization.

18054663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32214.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 18054663 is about 4249.0778999684. The cubic root of 18054663 is about 262.3391631515.

The spelling of 18054663 in words is "eighteen million, fifty-four thousand, six hundred sixty-three".