19999010159 has 12 divisors (see below), whose sum is σ = 20219572464. Its totient is φ = 19780810944.

The previous prime is 19999010153. The next prime is 19999010203. The reversal of 19999010159 is 95101099991.

It is not a de Polignac number, because 19999010159 - 2²⁰ = 19997961583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19999010159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19999010153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11253479 + ... + 11255255.

It is an arithmetic number, because the mean of its divisors is an integer number (1684964372).

Almost surely, 2^19999010159 is an apocalyptic number.

19999010159 is a deficient number, since it is larger than the sum of its proper divisors (220562305).

19999010159 is an equidigital number, since it uses as much as digits as its factorization.

19999010159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 295245, while the sum is 53.

The spelling of 19999010159 in words is "nineteen billion, nine hundred ninety-nine million, ten thousand, one hundred fifty-nine".