18265230171 has 12 divisors (see below), whose sum is σ = 26625158560. Its totient is φ = 12065105520.

The previous prime is 18265230169. The next prime is 18265230187. The reversal of 18265230171 is 17103256281.

It is not a de Polignac number, because 18265230171 - 2¹ = 18265230169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18265230121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9308515 + ... + 9310476.

Almost surely, 2^18265230171 is an apocalyptic number.

18265230171 is a deficient number, since it is larger than the sum of its proper divisors (8359928389).

18265230171 is a wasteful number, since it uses less digits than its factorization.

18265230171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18619106 (or 18619103 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 18265230171 in words is "eighteen billion, two hundred sixty-five million, two hundred thirty thousand, one hundred seventy-one".