18162066992 has 20 divisors (see below), whose sum is σ = 35191950696. Its totient is φ = 9080273280.

The previous prime is 18162066991. The next prime is 18162067013. The reversal of 18162066992 is 29966026181.

It is a self number, because there is not a number n which added to its sum of digits gives 18162066992.

It is not an unprimeable number, because it can be changed into a prime (18162066991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183668 + ... + 264684.

Almost surely, 2^18162066992 is an apocalyptic number.

It is an amenable number.

18162066992 is a deficient number, since it is larger than the sum of its proper divisors (17029883704).

18162066992 is a wasteful number, since it uses less digits than its factorization.

18162066992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95036 (or 95030 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 18162066992 in words is "eighteen billion, one hundred sixty-two million, sixty-six thousand, nine hundred ninety-two".