660560296205 has 16 divisors (see below), whose sum is σ = 793238528304. Its totient is φ = 528070932480.

The previous prime is 660560296117. The next prime is 660560296211. The reversal of 660560296205 is 502692065066.

660560296205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 47688950884 + 612871345321 = 218378^2 + 782861^2 .

It is not a de Polignac number, because 660560296205 - 2¹² = 660560292109 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 660560296205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68369075 + ... + 68378735.

It is an arithmetic number, because the mean of its divisors is an integer number (49577408019).

Almost surely, 2^660560296205 is an apocalyptic number.

It is an amenable number.

660560296205 is a deficient number, since it is larger than the sum of its proper divisors (132678232099).

660560296205 is a wasteful number, since it uses less digits than its factorization.

660560296205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18016.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 660560296205 in words is "six hundred sixty billion, five hundred sixty million, two hundred ninety-six thousand, two hundred five".