18066368 has 14 divisors (see below), whose sum is σ = 35850576. Its totient is φ = 9033152.

The previous prime is 18066337. The next prime is 18066379. The reversal of 18066368 is 86366081.

It is a super-2 number, since 2×18066368² = 652787305422848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141080 + ... + 141207.

Almost surely, 2^18066368 is an apocalyptic number.

It is an amenable number.

18066368 is a deficient number, since it is larger than the sum of its proper divisors (17784208).

18066368 is an equidigital number, since it uses as much as digits as its factorization.

18066368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282299 (or 282289 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 18066368 is about 4250.4550344640. The cubic root of 18066368 is about 262.3958431822.

The spelling of 18066368 in words is "eighteen million, sixty-six thousand, three hundred sixty-eight".