198915503106 has 8 divisors (see below), whose sum is σ = 397831006224. Its totient is φ = 66305167700.

The previous prime is 198915503089. The next prime is 198915503147. The reversal of 198915503106 is 601305519891.

198915503106 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

198915503106 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16576291920 + ... + 16576291931.

It is an arithmetic number, because the mean of its divisors is an integer number (49728875778).

Almost surely, 2^198915503106 is an apocalyptic number.

198915503106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

198915503106 is a wasteful number, since it uses less digits than its factorization.

198915503106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33152583856.

The product of its (nonzero) digits is 291600, while the sum is 48.

The spelling of 198915503106 in words is "one hundred ninety-eight billion, nine hundred fifteen million, five hundred three thousand, one hundred six".