205727070611 has 2 divisors, whose sum is σ = 205727070612. Its totient is φ = 205727070610.

The previous prime is 205727070551. The next prime is 205727070617. The reversal of 205727070611 is 116070727502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205727070611 is a prime.

It is not a weakly prime, because it can be changed into another prime (205727070617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102863535305 + 102863535306.

It is an arithmetic number, because the mean of its divisors is an integer number (102863535306).

Almost surely, 2^205727070611 is an apocalyptic number.

205727070611 is a deficient number, since it is larger than the sum of its proper divisors (1).

205727070611 is an equidigital number, since it uses as much as digits as its factorization.

205727070611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 38.

The spelling of 205727070611 in words is "two hundred five billion, seven hundred twenty-seven million, seventy thousand, six hundred eleven".