18066486 has 24 divisors (see below), whose sum is σ = 37151352. Its totient is φ = 5853600.

The previous prime is 18066479. The next prime is 18066487. The reversal of 18066486 is 68466081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66531 + ... + 66801.

It is an arithmetic number, because the mean of its divisors is an integer number (1547973).

Almost surely, 2^18066486 is an apocalyptic number.

18066486 is an abundant number, since it is smaller than the sum of its proper divisors (19084866).

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

18066486 is an equidigital number, since it uses as much as digits as its factorization.

18066486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 18066486 is about 4250.4689153081. The cubic root of 18066486 is about 262.3964144581.

It can be divided in two parts, 180 and 66486, that added together give a palindrome (66666).

The spelling of 18066486 in words is "eighteen million, sixty-six thousand, four hundred eighty-six".