18136066 has 12 divisors (see below), whose sum is σ = 29458242. Its totient is φ = 8370336.

The previous prime is 18136061. The next prime is 18136073. The reversal of 18136066 is 66063181.

It can be written as a sum of positive squares in 3 ways, for example, as 11526025 + 6610041 = 3395^2 + 2571^2 .

It is not an unprimeable number, because it can be changed into a prime (18136061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26491 + ... + 27166.

Almost surely, 2^18136066 is an apocalyptic number.

18136066 is a deficient number, since it is larger than the sum of its proper divisors (11322176).

18136066 is a wasteful number, since it uses less digits than its factorization.

18136066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53685 (or 53672 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 18136066 is about 4258.6460289627. The cubic root of 18136066 is about 262.7328413267.

The spelling of 18136066 in words is "eighteen million, one hundred thirty-six thousand, sixty-six".