20000099999 has 8 divisors (see below), whose sum is σ = 21820800000. Its totient is φ = 18179818200.

The previous prime is 20000099969. The next prime is 20000100013. The reversal of 20000099999 is 99999000002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000099999 - 2¹² = 20000095903 is a prime.

It is a Duffinian number.

20000099999 is a modest number, since divided by 99999 gives 2 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000099969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 200000.

It is an arithmetic number, because the mean of its divisors is an integer number (2727600000).

Almost surely, 2^20000099999 is an apocalyptic number.

20000099999 is a deficient number, since it is larger than the sum of its proper divisors (1820700001).

20000099999 is a wasteful number, since it uses less digits than its factorization.

20000099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209101.

The product of its (nonzero) digits is 118098, while the sum is 47.

It can be divided in two parts, 2000009 and 9999, that multiplied together give a palindrome (19998089991).

The spelling of 20000099999 in words is "twenty billion, ninety-nine thousand, nine hundred ninety-nine".