19990034330100 has 144 divisors (see below), whose sum is σ = 59740628021760. Its totient is φ = 5155516454400.

The previous prime is 19990034330099. The next prime is 19990034330111. The reversal of 19990034330100 is 103343009991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14334606 + ... + 15667194.

Almost surely, 2^{19990034330100} is an apocalyptic number.

19990034330100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19990034330100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29870314010880).

19990034330100 is an abundant number, since it is smaller than the sum of its proper divisors (39750593691660).

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

19990034330100 is a wasteful number, since it uses less digits than its factorization.

19990034330100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334250 (or 1334243 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 42.

The spelling of 19990034330100 in words is "nineteen trillion, nine hundred ninety billion, thirty-four million, three hundred thirty thousand, one hundred".