200020019999 has 4 divisors (see below), whose sum is σ = 200025066336. Its totient is φ = 200014973664.

The previous prime is 200020019971. The next prime is 200020020023. The reversal of 200020019999 is 999910020002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200020019999 - 2¹² = 200020015903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200020019299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2463239 + ... + 2543144.

It is an arithmetic number, because the mean of its divisors is an integer number (50006266584).

Almost surely, 2^200020019999 is an apocalyptic number.

200020019999 is a deficient number, since it is larger than the sum of its proper divisors (5046337).

200020019999 is an equidigital number, since it uses as much as digits as its factorization.

200020019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046336.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 200020019999 in words is "two hundred billion, twenty million, nineteen thousand, nine hundred ninety-nine".