206746067121 has 16 divisors (see below), whose sum is σ = 301103701248. Its totient is φ = 125141418000.

The previous prime is 206746067117. The next prime is 206746067147. The reversal of 206746067121 is 121760647602.

It is not a de Polignac number, because 206746067121 - 2² = 206746067117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206746067321) 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 15 ways as a sum of consecutive naturals, for example, 3954355 + ... + 4006296.

It is an arithmetic number, because the mean of its divisors is an integer number (18818981328).

Almost surely, 2^206746067121 is an apocalyptic number.

It is an amenable number.

206746067121 is a deficient number, since it is larger than the sum of its proper divisors (94357634127).

206746067121 is a wasteful number, since it uses less digits than its factorization.

206746067121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961452.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 206746067121 in words is "two hundred six billion, seven hundred forty-six million, sixty-seven thousand, one hundred twenty-one".