206725964964611 has 2 divisors, whose sum is σ = 206725964964612. Its totient is φ = 206725964964610.

The previous prime is 206725964964583. The next prime is 206725964964637. The reversal of 206725964964611 is 116469469527602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206725964964611 is a prime.

It is not a weakly prime, because it can be changed into another prime (206725964961611) 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, 103362982482305 + 103362982482306.

It is an arithmetic number, because the mean of its divisors is an integer number (103362982482306).

Almost surely, 2^{206725964964611} is an apocalyptic number.

206725964964611 is a deficient number, since it is larger than the sum of its proper divisors (1).

206725964964611 is an equidigital number, since it uses as much as digits as its factorization.

206725964964611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 68.

The spelling of 206725964964611 in words is "two hundred six trillion, seven hundred twenty-five billion, nine hundred sixty-four million, nine hundred sixty-four thousand, six hundred eleven".