206939006343 has 6 divisors (see below), whose sum is σ = 298911898064. Its totient is φ = 137959337556.

The previous prime is 206939006321. The next prime is 206939006377. The reversal of 206939006343 is 343600939602.

206939006343 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 3 + 9 + 0 + 0 + 634 + 3 = 666.

It is not a de Polignac number, because 206939006343 - 2⁵ = 206939006311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206939006543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11496611455 + ... + 11496611472.

Almost surely, 2^206939006343 is an apocalyptic number.

206939006343 is a deficient number, since it is larger than the sum of its proper divisors (91972891721).

206939006343 is a wasteful number, since it uses less digits than its factorization.

206939006343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22993222933 (or 22993222930 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 45.

The spelling of 206939006343 in words is "two hundred six billion, nine hundred thirty-nine million, six thousand, three hundred forty-three".