198195885516 has 24 divisors (see below), whose sum is σ = 464102828784. Its totient is φ = 65830186240.

The previous prime is 198195885487. The next prime is 198195885527. The reversal of 198195885516 is 615588591891.

198195885516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 29385105 + ... + 29391848.

It is an arithmetic number, because the mean of its divisors is an integer number (19337617866).

Almost surely, 2^198195885516 is an apocalyptic number.

It is an amenable number.

198195885516 is an abundant number, since it is smaller than the sum of its proper divisors (265906943268).

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

198195885516 is a wasteful number, since it uses less digits than its factorization.

198195885516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58777241 (or 58777239 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 66.

The spelling of 198195885516 in words is "one hundred ninety-eight billion, one hundred ninety-five million, eight hundred eighty-five thousand, five hundred sixteen".