198855524056 has 128 divisors (see below), whose sum is σ = 456203059200. Its totient is φ = 79322664960.

The previous prime is 198855523963. The next prime is 198855524057. The reversal of 198855524056 is 650425558891.

198855524056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198855524056² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198855524057) 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, 40016740 + ... + 40021708.

It is an arithmetic number, because the mean of its divisors is an integer number (3564086400).

Almost surely, 2^198855524056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198855524056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228101529600).

198855524056 is an abundant number, since it is smaller than the sum of its proper divisors (257347535144).

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

198855524056 is a wasteful number, since it uses less digits than its factorization.

198855524056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 58.

The spelling of 198855524056 in words is "one hundred ninety-eight billion, eight hundred fifty-five million, five hundred twenty-four thousand, fifty-six".