18356066 has 8 divisors (see below), whose sum is σ = 27674460. Its totient is φ = 9131248.

The previous prime is 18356027. The next prime is 18356099. The reversal of 18356066 is 66065381.

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 46225 = 4279^2 + 215^2 .

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

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, 22901 + ... + 23688.

Almost surely, 2^18356066 is an apocalyptic number.

18356066 is a deficient number, since it is larger than the sum of its proper divisors (9318394).

18356066 is a wasteful number, since it uses less digits than its factorization.

18356066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46788.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 18356066 is about 4284.3979740449. The cubic root of 18356066 is about 263.7909367963.

The spelling of 18356066 in words is "eighteen million, three hundred fifty-six thousand, sixty-six".