204256659011 has 2 divisors, whose sum is σ = 204256659012. Its totient is φ = 204256659010.

The previous prime is 204256658999. The next prime is 204256659037. The reversal of 204256659011 is 110956652402.

204256659011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204256659011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204256659011.

It is not a weakly prime, because it can be changed into another prime (204256659311) 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, 102128329505 + 102128329506.

It is an arithmetic number, because the mean of its divisors is an integer number (102128329506).

Almost surely, 2^204256659011 is an apocalyptic number.

204256659011 is a deficient number, since it is larger than the sum of its proper divisors (1).

204256659011 is an equidigital number, since it uses as much as digits as its factorization.

204256659011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 204256659011 in words is "two hundred four billion, two hundred fifty-six million, six hundred fifty-nine thousand, eleven".