18066112 has 56 divisors (see below), whose sum is σ = 38404800. Its totient is φ = 8407296.

The previous prime is 18066091. The next prime is 18066119. The reversal of 18066112 is 21166081.

It is not an unprimeable number, because it can be changed into a prime (18066119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100839 + ... + 101017.

It is an arithmetic number, because the mean of its divisors is an integer number (685800).

Almost surely, 2^18066112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18066112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19202400).

18066112 is an abundant number, since it is smaller than the sum of its proper divisors (20338688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18066112 is a wasteful number, since it uses less digits than its factorization.

18066112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18066112 is about 4250.4249199345. The cubic root of 18066112 is about 262.3946037954.

The spelling of 18066112 in words is "eighteen million, sixty-six thousand, one hundred twelve".