205433134530 has 64 divisors (see below), whose sum is σ = 538444101888. Its totient is φ = 49855921920.

The previous prime is 205433134513. The next prime is 205433134661. The reversal of 205433134530 is 35431334502.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205433134491 and 205433134500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3681829 + ... + 3737208.

It is an arithmetic number, because the mean of its divisors is an integer number (8413189092).

Almost surely, 2^205433134530 is an apocalyptic number.

205433134530 is an abundant number, since it is smaller than the sum of its proper divisors (333010967358).

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

205433134530 is a wasteful number, since it uses less digits than its factorization.

205433134530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7419131.

The product of its (nonzero) digits is 64800, while the sum is 33.

The spelling of 205433134530 in words is "two hundred five billion, four hundred thirty-three million, one hundred thirty-four thousand, five hundred thirty".