198911088480 has 192 divisors, whose sum is σ = 675513639360. Its totient is φ = 48908599296.

The previous prime is 198911088473. The next prime is 198911088487. The reversal of 198911088480 is 84880119891.

It is an interprime number because it is at equal distance from previous prime (198911088473) and next prime (198911088487).

It is a super-2 number, since 2×198911088480² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198911088480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198911088487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5779804 + ... + 5814116.

It is an arithmetic number, because the mean of its divisors is an integer number (3518300205).

Almost surely, 2^198911088480 is an apocalyptic number.

198911088480 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 198911088480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337756819680).

198911088480 is an abundant number, since it is smaller than the sum of its proper divisors (476602550880).

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

198911088480 is a wasteful number, since it uses less digits than its factorization.

198911088480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35273 (or 35265 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 57.

The spelling of 198911088480 in words is "one hundred ninety-eight billion, nine hundred eleven million, eighty-eight thousand, four hundred eighty".