260656307776 has 28 divisors (see below), whose sum is σ = 535075721820. Its totient is φ = 125834078720.

The previous prime is 260656307773. The next prime is 260656307797. The reversal of 260656307776 is 677703656062.

It is a happy number.

260656307776 is digitally balanced in base 3, 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 2 ways, for example, as 193459225600 + 67197082176 = 439840^2 + 259224^2 .

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (260656307773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70218055 + ... + 70221766.

Almost surely, 2^260656307776 is an apocalyptic number.

It is an amenable number.

260656307776 is an abundant number, since it is smaller than the sum of its proper divisors (274419414044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260656307776 is a wasteful number, since it uses less digits than its factorization.

260656307776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140439862 (or 140439852 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 55.

The spelling of 260656307776 in words is "two hundred sixty billion, six hundred fifty-six million, three hundred seven thousand, seven hundred seventy-six".