18170398118 has 8 divisors (see below), whose sum is σ = 27260274600. Its totient is φ = 9083639920.

The previous prime is 18170398111. The next prime is 18170398121. The reversal of 18170398118 is 81189307181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18170398111) 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, 764948 + ... + 788343.

It is an arithmetic number, because the mean of its divisors is an integer number (3407534325).

Almost surely, 2^18170398118 is an apocalyptic number.

18170398118 is a deficient number, since it is larger than the sum of its proper divisors (9089876482).

18170398118 is a wasteful number, since it uses less digits than its factorization.

18170398118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559142.

The product of its (nonzero) digits is 96768, while the sum is 47.

The spelling of 18170398118 in words is "eighteen billion, one hundred seventy million, three hundred ninety-eight thousand, one hundred eighteen".