18165495066 has 16 divisors (see below), whose sum is σ = 36332328384. Its totient is φ = 6054941984.

The previous prime is 18165495043. The next prime is 18165495067. The reversal of 18165495066 is 66059456181.

It is not an unprimeable number, because it can be changed into a prime (18165495067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247966 + ... + 312758.

It is an arithmetic number, because the mean of its divisors is an integer number (2270770524).

Almost surely, 2^18165495066 is an apocalyptic number.

18165495066 is an abundant number, since it is smaller than the sum of its proper divisors (18166833318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18165495066 is a wasteful number, since it uses less digits than its factorization.

18165495066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111525.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 18165495066 in words is "eighteen billion, one hundred sixty-five million, four hundred ninety-five thousand, sixty-six".