206277075121 has 6 divisors (see below), whose sum is σ = 223365117030. Its totient is φ = 190409607648.

The previous prime is 206277075089. The next prime is 206277075163. The reversal of 206277075121 is 121570772602.

It can be written as a sum of positive squares in 3 ways, for example, as 12642753600 + 193634321521 = 112440^2 + 440039^2 .

It is not a de Polignac number, because 206277075121 - 2⁵ = 206277075089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206277078121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610287036 + ... + 610287373.

It is an arithmetic number, because the mean of its divisors is an integer number (37227519505).

Almost surely, 2^206277075121 is an apocalyptic number.

It is an amenable number.

206277075121 is a deficient number, since it is larger than the sum of its proper divisors (17088041909).

206277075121 is a wasteful number, since it uses less digits than its factorization.

206277075121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220574435 (or 1220574422 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 206277075121 in words is "two hundred six billion, two hundred seventy-seven million, seventy-five thousand, one hundred twenty-one".