13277322165636 has 27 divisors (see below), whose sum is σ = 33562175183173. Its totient is φ = 4425766767600.

The previous prime is 13277322165571. The next prime is 13277322165659. The reversal of 13277322165636 is 63656122377231.

The square root of 13277322165636 is 3643806.

It is a perfect power (a square), and thus also a powerful number.

13277322165636 is a `hidden beast` number, since 1 + 3 + 2 + 7 + 73 + 2 + 2 + 1 + 6 + 563 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104777805636 + 13172544360000 = 323694^2 + 3629400^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 21559186 + ... + 22166486.

Almost surely, 2^{13277322165636} is an apocalyptic number.

13277322165636 is the 3643806-th square number.

It is an amenable number.

13277322165636 is an abundant number, since it is smaller than the sum of its proper divisors (20284853017537).

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

13277322165636 is an frugal number, since it uses more digits than its factorization.

13277322165636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214612 (or 607306 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 54.

The spelling of 13277322165636 in words is "thirteen trillion, two hundred seventy-seven billion, three hundred twenty-two million, one hundred sixty-five thousand, six hundred thirty-six".