205560730653 has 16 divisors (see below), whose sum is σ = 283699128000. Its totient is φ = 132236979840.

The previous prime is 205560730643. The next prime is 205560730681. The reversal of 205560730653 is 356037065502.

It is not a de Polignac number, because 205560730653 - 2¹² = 205560726557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205560730643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547528 + ... + 843153.

It is an arithmetic number, because the mean of its divisors is an integer number (17731195500).

Almost surely, 2^205560730653 is an apocalyptic number.

It is an amenable number.

205560730653 is a deficient number, since it is larger than the sum of its proper divisors (78138397347).

205560730653 is a wasteful number, since it uses less digits than its factorization.

205560730653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392412.

The product of its (nonzero) digits is 567000, while the sum is 42.

The spelling of 205560730653 in words is "two hundred five billion, five hundred sixty million, seven hundred thirty thousand, six hundred fifty-three".