206560724645 has 16 divisors (see below), whose sum is σ = 276160105728. Its totient is φ = 147029682240.

The previous prime is 206560724627. The next prime is 206560724683. The reversal of 206560724645 is 546427065602.

206560724645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 206560724645 - 2²⁰ = 206559676069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

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 206560724645.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 39951134 + ... + 39956303.

It is an arithmetic number, because the mean of its divisors is an integer number (17260006608).

Almost surely, 2^206560724645 is an apocalyptic number.

It is an amenable number.

206560724645 is a deficient number, since it is larger than the sum of its proper divisors (69599381083).

206560724645 is a wasteful number, since it uses less digits than its factorization.

206560724645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79907500.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 206560724645 in words is "two hundred six billion, five hundred sixty million, seven hundred twenty-four thousand, six hundred forty-five".