18418173316 has 96 divisors (see below), whose sum is σ = 34920990720. Its totient is φ = 8484787584.

The previous prime is 18418173283. The next prime is 18418173341. The reversal of 18418173316 is 61337181481.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41575791 + ... + 41576233.

It is an arithmetic number, because the mean of its divisors is an integer number (363760320).

Almost surely, 2^18418173316 is an apocalyptic number.

It is an amenable number.

18418173316 is a deficient number, since it is larger than the sum of its proper divisors (16502817404).

18418173316 is a wasteful number, since it uses less digits than its factorization.

18418173316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 711 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The spelling of 18418173316 in words is "eighteen billion, four hundred eighteen million, one hundred seventy-three thousand, three hundred sixteen".