199818200199804 has 48 divisors (see below), whose sum is σ = 485990534590848. Its totient is φ = 63838650477888.

The previous prime is 199818200199719. The next prime is 199818200199851. The reversal of 199818200199804 is 408991002818991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3358485114 + ... + 3358544609.

It is an arithmetic number, because the mean of its divisors is an integer number (10124802803976).

Almost surely, 2^{199818200199804} is an apocalyptic number.

It is an amenable number.

199818200199804 is an abundant number, since it is smaller than the sum of its proper divisors (286172334391044).

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

199818200199804 is a wasteful number, since it uses less digits than its factorization.

199818200199804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717029834 (or 6717029832 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 69.

The spelling of 199818200199804 in words is "one hundred ninety-nine trillion, eight hundred eighteen billion, two hundred million, one hundred ninety-nine thousand, eight hundred four".