198820966524 has 48 divisors (see below), whose sum is σ = 517057632000. Its totient is φ = 59092298496.

The previous prime is 198820966499. The next prime is 198820966559. The reversal of 198820966524 is 425669028891.

198820966524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25643824 + ... + 25651575.

It is an arithmetic number, because the mean of its divisors is an integer number (10772034000).

Almost surely, 2^198820966524 is an apocalyptic number.

It is an amenable number.

198820966524 is an abundant number, since it is smaller than the sum of its proper divisors (318236665476).

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

198820966524 is a wasteful number, since it uses less digits than its factorization.

198820966524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51295442 (or 51295440 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 198820966524 in words is "one hundred ninety-eight billion, eight hundred twenty million, nine hundred sixty-six thousand, five hundred twenty-four".