206116643262163 has 2 divisors, whose sum is σ = 206116643262164. Its totient is φ = 206116643262162.

The previous prime is 206116643262151. The next prime is 206116643262217. The reversal of 206116643262163 is 361262346611602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206116643262163 - 2¹³ = 206116643253971 is a prime.

It is not a weakly prime, because it can be changed into another prime (206116643262143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103058321631081 + 103058321631082.

It is an arithmetic number, because the mean of its divisors is an integer number (103058321631082).

Almost surely, 2^{206116643262163} is an apocalyptic number.

206116643262163 is a deficient number, since it is larger than the sum of its proper divisors (1).

206116643262163 is an equidigital number, since it uses as much as digits as its factorization.

206116643262163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 49.

Adding to 206116643262163 its reverse (361262346611602), we get a palindrome (567378989873765).

The spelling of 206116643262163 in words is "two hundred six trillion, one hundred sixteen billion, six hundred forty-three million, two hundred sixty-two thousand, one hundred sixty-three".