20099575799 has 2 divisors, whose sum is σ = 20099575800. Its totient is φ = 20099575798.

The previous prime is 20099575781. The next prime is 20099575831. The reversal of 20099575799 is 99757599002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20099575799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20099571799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10049787899 + 10049787900.

It is an arithmetic number, because the mean of its divisors is an integer number (10049787900).

Almost surely, 2^20099575799 is an apocalyptic number.

20099575799 is a deficient number, since it is larger than the sum of its proper divisors (1).

20099575799 is an equidigital number, since it uses as much as digits as its factorization.

20099575799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16074450, while the sum is 62.

The spelling of 20099575799 in words is "twenty billion, ninety-nine million, five hundred seventy-five thousand, seven hundred ninety-nine".