198919311360 has 832 divisors, whose sum is σ = 835654993920. Its totient is φ = 39140720640.

The previous prime is 198919311359. The next prime is 198919311373. The reversal of 198919311360 is 63113919891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 89885614 + ... + 89887826.

Almost surely, 2^198919311360 is an apocalyptic number.

198919311360 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 198919311360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417827496960).

198919311360 is an abundant number, since it is smaller than the sum of its proper divisors (636735682560).

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

198919311360 is a wasteful number, since it uses less digits than its factorization.

198919311360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 2260 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 51.

The spelling of 198919311360 in words is "one hundred ninety-eight billion, nine hundred nineteen million, three hundred eleven thousand, three hundred sixty".