198188160 has 128 divisors (see below), whose sum is σ = 638193600. Its totient is φ = 52310016.

The previous prime is 198188153. The next prime is 198188189. The reversal of 198188160 is 61881891.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208807 + ... + 209753.

Almost surely, 2^198188160 is an apocalyptic number.

198188160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198188160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319096800).

198188160 is an abundant number, since it is smaller than the sum of its proper divisors (440005440).

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

198188160 is a wasteful number, since it uses less digits than its factorization.

198188160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 42.

The square root of 198188160 is about 14077.9316662640. The cubic root of 198188160 is about 583.0322371738.

The spelling of 198188160 in words is "one hundred ninety-eight million, one hundred eighty-eight thousand, one hundred sixty".