198005503434 has 16 divisors (see below), whose sum is σ = 416853691680. Its totient is φ = 62528053680.

The previous prime is 198005503433. The next prime is 198005503447. The reversal of 198005503434 is 434305500891.

It is not an unprimeable number, because it can be changed into a prime (198005503433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868445077 + ... + 868445304.

It is an arithmetic number, because the mean of its divisors is an integer number (26053355730).

Almost surely, 2^198005503434 is an apocalyptic number.

198005503434 is an abundant number, since it is smaller than the sum of its proper divisors (218848188246).

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

198005503434 is a wasteful number, since it uses less digits than its factorization.

198005503434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736890405.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 198005503434 in words is "one hundred ninety-eight billion, five million, five hundred three thousand, four hundred thirty-four".