18198611332 has 24 divisors (see below), whose sum is σ = 34759210752. Its totient is φ = 8268189600.

The previous prime is 18198611297. The next prime is 18198611381. The reversal of 18198611332 is 23311689181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2388 + ... + 190795.

It is an arithmetic number, because the mean of its divisors is an integer number (1448300448).

Almost surely, 2^18198611332 is an apocalyptic number.

It is an amenable number.

18198611332 is a deficient number, since it is larger than the sum of its proper divisors (16560599420).

18198611332 is a wasteful number, since it uses less digits than its factorization.

18198611332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195339 (or 195337 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The spelling of 18198611332 in words is "eighteen billion, one hundred ninety-eight million, six hundred eleven thousand, three hundred thirty-two".