206115170641 has 2 divisors, whose sum is σ = 206115170642. Its totient is φ = 206115170640.

The previous prime is 206115170609. The next prime is 206115170659. The reversal of 206115170641 is 146071511602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206044274241 + 70896400 = 453921^2 + 8420^2 .

It is a cyclic number.

It is not a de Polignac number, because 206115170641 - 2⁵ = 206115170609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206115170597 and 206115170606.

It is not a weakly prime, because it can be changed into another prime (206115170741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103057585320 + 103057585321.

It is an arithmetic number, because the mean of its divisors is an integer number (103057585321).

Almost surely, 2^206115170641 is an apocalyptic number.

It is an amenable number.

206115170641 is a deficient number, since it is larger than the sum of its proper divisors (1).

206115170641 is an equidigital number, since it uses as much as digits as its factorization.

206115170641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 206115170641 in words is "two hundred six billion, one hundred fifteen million, one hundred seventy thousand, six hundred forty-one".