18136117459206 has 48 divisors (see below), whose sum is σ = 39406068393120. Its totient is φ = 6028274361600.

The previous prime is 18136117459199. The next prime is 18136117459223. The reversal of 18136117459206 is 60295471163181.

18136117459206 is a `hidden beast` number, since 1 + 8 + 1 + 36 + 1 + 17 + 4 + 592 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204161256 + ... + 204250068.

It is an arithmetic number, because the mean of its divisors is an integer number (820959758190).

It is a 1-persistent number, because it is pandigital, but 2⋅18136117459206 = 36272234918412 is not.

Almost surely, 2^{18136117459206} is an apocalyptic number.

18136117459206 is an abundant number, since it is smaller than the sum of its proper divisors (21269950933914).

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

18136117459206 is a wasteful number, since it uses less digits than its factorization.

18136117459206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120781 (or 120778 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 18136117459206 in words is "eighteen trillion, one hundred thirty-six billion, one hundred seventeen million, four hundred fifty-nine thousand, two hundred six".