205059013898 has 8 divisors (see below), whose sum is σ = 307590550308. Its totient is φ = 102528830464.

The previous prime is 205059013879. The next prime is 205059013961. The reversal of 205059013898 is 898310950502.

It can be written as a sum of positive squares in 2 ways, for example, as 204894738409 + 164275489 = 452653^2 + 12817^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234890 + ... + 682122.

Almost surely, 2^205059013898 is an apocalyptic number.

205059013898 is a deficient number, since it is larger than the sum of its proper divisors (102531536410).

205059013898 is a wasteful number, since it uses less digits than its factorization.

205059013898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676488.

The product of its (nonzero) digits is 777600, while the sum is 50.

The spelling of 205059013898 in words is "two hundred five billion, fifty-nine million, thirteen thousand, eight hundred ninety-eight".