205305332530 has 16 divisors (see below), whose sum is σ = 369704329560. Its totient is φ = 82087748352.

The previous prime is 205305332513. The next prime is 205305332543. The reversal of 205305332530 is 35233503502.

It can be written as a sum of positive squares in 4 ways, for example, as 154545693129 + 50759639401 = 393123^2 + 225299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 205305332492 and 205305332501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4272999 + ... + 4320778.

Almost surely, 2^205305332530 is an apocalyptic number.

205305332530 is a deficient number, since it is larger than the sum of its proper divisors (164398997030).

205305332530 is a wasteful number, since it uses less digits than its factorization.

205305332530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8596173.

The product of its (nonzero) digits is 40500, while the sum is 31.

The spelling of 205305332530 in words is "two hundred five billion, three hundred five million, three hundred thirty-two thousand, five hundred thirty".