205059013899 has 8 divisors (see below), whose sum is σ = 277492795200. Its totient is φ = 134665620936.

The previous prime is 205059013879. The next prime is 205059013961. The reversal of 205059013899 is 998310950502.

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

It is not a de Polignac number, because 205059013899 - 2⁵ = 205059013867 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (205059013849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510096849 + ... + 510097250.

It is an arithmetic number, because the mean of its divisors is an integer number (34686599400).

Almost surely, 2^205059013899 is an apocalyptic number.

205059013899 is a deficient number, since it is larger than the sum of its proper divisors (72433781301).

205059013899 is a wasteful number, since it uses less digits than its factorization.

205059013899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020194169.

The product of its (nonzero) digits is 874800, while the sum is 51.

The spelling of 205059013899 in words is "two hundred five billion, fifty-nine million, thirteen thousand, eight hundred ninety-nine".