206682145311 has 4 divisors (see below), whose sum is σ = 275576193752. Its totient is φ = 137788096872.

The previous prime is 206682145297. The next prime is 206682145337. The reversal of 206682145311 is 113541286602.

206682145311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 206682145311 - 2⁷ = 206682145183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206682145311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206682145381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34447024216 + ... + 34447024221.

It is an arithmetic number, because the mean of its divisors is an integer number (68894048438).

Almost surely, 2^206682145311 is an apocalyptic number.

206682145311 is a deficient number, since it is larger than the sum of its proper divisors (68894048441).

206682145311 is an equidigital number, since it uses as much as digits as its factorization.

206682145311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68894048440.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 206682145311 in words is "two hundred six billion, six hundred eighty-two million, one hundred forty-five thousand, three hundred eleven".