206961810229 has 2 divisors, whose sum is σ = 206961810230. Its totient is φ = 206961810228.

The previous prime is 206961810203. The next prime is 206961810247. The reversal of 206961810229 is 922018169602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185159811204 + 21801999025 = 430302^2 + 147655^2 .

It is a cyclic number.

It is not a de Polignac number, because 206961810229 - 2⁷ = 206961810101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206961810529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103480905114 + 103480905115.

It is an arithmetic number, because the mean of its divisors is an integer number (103480905115).

Almost surely, 2^206961810229 is an apocalyptic number.

It is an amenable number.

206961810229 is a deficient number, since it is larger than the sum of its proper divisors (1).

206961810229 is an equidigital number, since it uses as much as digits as its factorization.

206961810229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 206961810229 in words is "two hundred six billion, nine hundred sixty-one million, eight hundred ten thousand, two hundred twenty-nine".