19999010160 has 400 divisors, whose sum is σ = 74194179840. Its totient is φ = 4981616640.

The previous prime is 19999010153. The next prime is 19999010203. The reversal of 19999010160 is 6101099991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5823804 + ... + 5827236.

Almost surely, 2^19999010160 is an apocalyptic number.

19999010160 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 19999010160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37097089920).

19999010160 is an abundant number, since it is smaller than the sum of its proper divisors (54195169680).

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

19999010160 is a wasteful number, since it uses less digits than its factorization.

19999010160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518 (or 3503 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The spelling of 19999010160 in words is "nineteen billion, nine hundred ninety-nine million, ten thousand, one hundred sixty".