13260565764 has 72 divisors (see below), whose sum is σ = 34578147968. Its totient is φ = 4282787520.

The previous prime is 13260565763. The next prime is 13260565807. The reversal of 13260565764 is 46756506231.

13260565764 is a `hidden beast` number, since 1 + 3 + 26 + 0 + 56 + 576 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (13260565763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102069 + ... + 192195.

Almost surely, 2^13260565764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13260565764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17289073984).

13260565764 is an abundant number, since it is smaller than the sum of its proper divisors (21317582204).

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

13260565764 is a wasteful number, since it uses less digits than its factorization.

13260565764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90265 (or 90260 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 13260565764 in words is "thirteen billion, two hundred sixty million, five hundred sixty-five thousand, seven hundred sixty-four".