206464266077 has 2 divisors, whose sum is σ = 206464266078. Its totient is φ = 206464266076.

The previous prime is 206464266013. The next prime is 206464266101. The reversal of 206464266077 is 770662464602.

206464266077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195411738916 + 11052527161 = 442054^2 + 105131^2 .

It is a cyclic number.

It is not a de Polignac number, because 206464266077 - 2⁶ = 206464266013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206464266007) 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, 103232133038 + 103232133039.

It is an arithmetic number, because the mean of its divisors is an integer number (103232133039).

Almost surely, 2^206464266077 is an apocalyptic number.

It is an amenable number.

206464266077 is a deficient number, since it is larger than the sum of its proper divisors (1).

206464266077 is an equidigital number, since it uses as much as digits as its factorization.

206464266077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 50.

The spelling of 206464266077 in words is "two hundred six billion, four hundred sixty-four million, two hundred sixty-six thousand, seventy-seven".