19998335909104 has 80 divisors (see below), whose sum is σ = 46742504716800. Its totient is φ = 8097007456512.

The previous prime is 19998335909059. The next prime is 19998335909113. The reversal of 19998335909104 is 40190953389991.

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, 12324787 + ... + 13852690.

It is an arithmetic number, because the mean of its divisors is an integer number (584281308960).

Almost surely, 2^{19998335909104} is an apocalyptic number.

19998335909104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19998335909104 is an abundant number, since it is smaller than the sum of its proper divisors (26744168807696).

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

19998335909104 is a wasteful number, since it uses less digits than its factorization.

19998335909104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26177870 (or 26177864 counting only the distinct ones).

The product of its (nonzero) digits is 85030560, while the sum is 70.

The spelling of 19998335909104 in words is "nineteen trillion, nine hundred ninety-eight billion, three hundred thirty-five million, nine hundred nine thousand, one hundred four".