205559502030 has 80 divisors (see below), whose sum is σ = 552848639904. Its totient is φ = 54803770560.

The previous prime is 205559502017. The next prime is 205559502061. The reversal of 205559502030 is 30205955502.

205559502030 is a `hidden beast` number, since 2 + 0 + 5 + 559 + 50 + 20 + 30 = 666.

205559502030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4002615 + ... + 4053645.

Almost surely, 2^205559502030 is an apocalyptic number.

205559502030 is an abundant number, since it is smaller than the sum of its proper divisors (347289137874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205559502030 is a wasteful number, since it uses less digits than its factorization.

205559502030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56023 (or 56014 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 205559502030 in words is "two hundred five billion, five hundred fifty-nine million, five hundred two thousand, thirty".