198482117580 has 96 divisors (see below), whose sum is σ = 617936256000. Its totient is φ = 52891164864.

The previous prime is 198482117569. The next prime is 198482117599. The reversal of 198482117580 is 85711284891.

198482117580 is a `hidden beast` number, since 1 + 9 + 8 + 48 + 2 + 1 + 17 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639271 + ... + 897569.

It is an arithmetic number, because the mean of its divisors is an integer number (6436836000).

Almost surely, 2^198482117580 is an apocalyptic number.

198482117580 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 198482117580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308968128000).

198482117580 is an abundant number, since it is smaller than the sum of its proper divisors (419454138420).

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

198482117580 is a wasteful number, since it uses less digits than its factorization.

198482117580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259740 (or 259732 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 54.

The spelling of 198482117580 in words is "one hundred ninety-eight billion, four hundred eighty-two million, one hundred seventeen thousand, five hundred eighty".