206564364326 has 8 divisors (see below), whose sum is σ = 312914334384. Its totient is φ = 102259586200.

The previous prime is 206564364311. The next prime is 206564364403. The reversal of 206564364326 is 623463465602.

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

It is a super-3 number, since 3×206564364326³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511297730 + ... + 511298133.

It is an arithmetic number, because the mean of its divisors is an integer number (39114291798).

Almost surely, 2^206564364326 is an apocalyptic number.

206564364326 is a deficient number, since it is larger than the sum of its proper divisors (106349970058).

206564364326 is a wasteful number, since it uses less digits than its factorization.

206564364326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022595966.

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 206564364326 in words is "two hundred six billion, five hundred sixty-four million, three hundred sixty-four thousand, three hundred twenty-six".