18200000198 has 8 divisors (see below), whose sum is σ = 27707463192. Its totient is φ = 8964179136.

The previous prime is 18200000197. The next prime is 18200000227. The reversal of 18200000198 is 89100000281.

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

18200000198 is a modest number, since divided by 198 gives 182 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 18200000198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200000191) 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, 67910315 + ... + 67910582.

It is an arithmetic number, because the mean of its divisors is an integer number (3463432899).

Almost surely, 2^18200000198 is an apocalyptic number.

18200000198 is a deficient number, since it is larger than the sum of its proper divisors (9507462994).

18200000198 is a wasteful number, since it uses less digits than its factorization.

18200000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135820966.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 18200000198 in words is "eighteen billion, two hundred million, one hundred ninety-eight", and thus it is an aban number.