20004000198 has 384 divisors, whose sum is σ = 55884463488. Its totient is φ = 4709892096.

The previous prime is 20004000167. The next prime is 20004000217. The reversal of 20004000198 is 89100040002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 127413936 + ... + 127414092.

It is an arithmetic number, because the mean of its divisors is an integer number (145532457).

Almost surely, 2^20004000198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20004000198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27942231744).

20004000198 is an abundant number, since it is smaller than the sum of its proper divisors (35880463290).

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

20004000198 is a wasteful number, since it uses less digits than its factorization.

20004000198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 20004000198 in words is "twenty billion, four million, one hundred ninety-eight", and thus it is an aban number.