260328735561 has 8 divisors (see below), whose sum is σ = 367522920864. Its totient is φ = 163343520320.

The previous prime is 260328735551. The next prime is 260328735593. The reversal of 260328735561 is 165537823062.

It is a happy number.

260328735561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 260328735561 - 2⁶ = 260328735497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 260328735561.

It is not an unprimeable number, because it can be changed into a prime (260328735551) 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 7 ways as a sum of consecutive naturals, for example, 2552242455 + ... + 2552242556.

It is an arithmetic number, because the mean of its divisors is an integer number (45940365108).

Almost surely, 2^260328735561 is an apocalyptic number.

It is an amenable number.

260328735561 is a deficient number, since it is larger than the sum of its proper divisors (107194185303).

260328735561 is a wasteful number, since it uses less digits than its factorization.

260328735561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104485031.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 260328735561 in words is "two hundred sixty billion, three hundred twenty-eight million, seven hundred thirty-five thousand, five hundred sixty-one".