206443204345 has 8 divisors (see below), whose sum is σ = 283122108864. Its totient is φ = 141561054384.

The previous prime is 206443204327. The next prime is 206443204367. The reversal of 206443204345 is 543402344602.

206443204345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206443204345 - 2²⁹ = 205906333433 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2949188599 + ... + 2949188668.

It is an arithmetic number, because the mean of its divisors is an integer number (35390263608).

Almost surely, 2^206443204345 is an apocalyptic number.

It is an amenable number.

206443204345 is a deficient number, since it is larger than the sum of its proper divisors (76678904519).

206443204345 is an equidigital number, since it uses as much as digits as its factorization.

206443204345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898377279.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 206443204345 its reverse (543402344602), we get a palindrome (749845548947).

The spelling of 206443204345 in words is "two hundred six billion, four hundred forty-three million, two hundred four thousand, three hundred forty-five".