205205578328 has 8 divisors (see below), whose sum is σ = 384760459380. Its totient is φ = 102602789160.

The previous prime is 205205578321. The next prime is 205205578349. The reversal of 205205578328 is 823875502502.

205205578328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205205578321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12825348638 + ... + 12825348653.

Almost surely, 2^205205578328 is an apocalyptic number.

It is an amenable number.

205205578328 is a deficient number, since it is larger than the sum of its proper divisors (179554881052).

205205578328 is a wasteful number, since it uses less digits than its factorization.

205205578328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25650697297 (or 25650697293 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 205205578328 in words is "two hundred five billion, two hundred five million, five hundred seventy-eight thousand, three hundred twenty-eight".