18666082 has 8 divisors (see below), whose sum is σ = 28964700. Its totient is φ = 9011184.

The previous prime is 18666077. The next prime is 18666107. The reversal of 18666082 is 28066681.

It can be written as a sum of positive squares in 2 ways, for example, as 18653761 + 12321 = 4319^2 + 111^2 .

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

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 in 3 ways as a sum of consecutive naturals, for example, 160857 + ... + 160972.

Almost surely, 2^18666082 is an apocalyptic number.

18666082 is a deficient number, since it is larger than the sum of its proper divisors (10298618).

18666082 is a wasteful number, since it uses less digits than its factorization.

18666082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321860.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 18666082 is about 4320.4261363898. The cubic root of 18666082 is about 265.2677109474.

The spelling of 18666082 in words is "eighteen million, six hundred sixty-six thousand, eighty-two".