18165185092 has 24 divisors (see below), whose sum is σ = 31972637312. Its totient is φ = 9030268800.

The previous prime is 18165185069. The next prime is 18165185107. The reversal of 18165185092 is 29058156181.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593353 + ... + 623215.

Almost surely, 2^18165185092 is an apocalyptic number.

It is an amenable number.

18165185092 is a deficient number, since it is larger than the sum of its proper divisors (13807452220).

18165185092 is a wasteful number, since it uses less digits than its factorization.

18165185092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30739 (or 30737 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 46.

The spelling of 18165185092 in words is "eighteen billion, one hundred sixty-five million, one hundred eighty-five thousand, ninety-two".