18554066 has 8 divisors (see below), whose sum is σ = 27987120. Its totient is φ = 9225028.

The previous prime is 18554009. The next prime is 18554071. The reversal of 18554066 is 66045581.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25556 + ... + 26271.

It is an arithmetic number, because the mean of its divisors is an integer number (3498390).

Almost surely, 2^18554066 is an apocalyptic number.

18554066 is a deficient number, since it is larger than the sum of its proper divisors (9433054).

18554066 is a wasteful number, since it uses less digits than its factorization.

18554066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52008.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 18554066 is about 4307.4430930658. The cubic root of 18554066 is about 264.7360181212.

The spelling of 18554066 in words is "eighteen million, five hundred fifty-four thousand, sixty-six".