205265945088 has 60 divisors (see below), whose sum is σ = 592411429038. Its totient is φ = 68421980160.

The previous prime is 205265945081. The next prime is 205265945111. The reversal of 205265945088 is 880549562502.

205265945088 is a `hidden beast` number, since 2 + 0 + 52 + 65 + 9 + 450 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 140571005184 + 64694939904 = 374928^2 + 254352^2 .

It is not an unprimeable number, because it can be changed into a prime (205265945081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22268173 + ... + 22277388.

Almost surely, 2^205265945088 is an apocalyptic number.

It is an amenable number.

205265945088 is an abundant number, since it is smaller than the sum of its proper divisors (387145483950).

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

205265945088 is an equidigital number, since it uses as much as digits as its factorization.

205265945088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44545585 (or 44545566 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 205265945088 in words is "two hundred five billion, two hundred sixty-five million, nine hundred forty-five thousand, eighty-eight".