206604412266101 has 2 divisors, whose sum is σ = 206604412266102. Its totient is φ = 206604412266100.

The previous prime is 206604412266071. The next prime is 206604412266139. The reversal of 206604412266101 is 101662214406602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204826216686001 + 1778195580100 = 14311751^2 + 1333490^2 .

It is a cyclic number.

It is not a de Polignac number, because 206604412266101 - 2³⁰ = 206603338524277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206604412226101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103302206133050 + 103302206133051.

It is an arithmetic number, because the mean of its divisors is an integer number (103302206133051).

Almost surely, 2^{206604412266101} is an apocalyptic number.

It is an amenable number.

206604412266101 is a deficient number, since it is larger than the sum of its proper divisors (1).

206604412266101 is an equidigital number, since it uses as much as digits as its factorization.

206604412266101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 206604412266101 in words is "two hundred six trillion, six hundred four billion, four hundred twelve million, two hundred sixty-six thousand, one hundred one".