13221614064636 has 72 divisors (see below), whose sum is σ = 34199816771120. Its totient is φ = 4304551071744.

The previous prime is 13221614064623. The next prime is 13221614064671. The reversal of 13221614064636 is 63646041612231.

13221614064636 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 1 + 6 + 1 + 4 + 0 + 6 + 4 + 636 = 666.

It is a super-2 number, since 2×13221614064636² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13221614064591 and 13221614064600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45628386 + ... + 45917238.

Almost surely, 2^{13221614064636} is an apocalyptic number.

It is an amenable number.

13221614064636 is an abundant number, since it is smaller than the sum of its proper divisors (20978202706484).

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

13221614064636 is a wasteful number, since it uses less digits than its factorization.

13221614064636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318475 (or 318470 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

Adding to 13221614064636 its reverse (63646041612231), we get a palindrome (76867655676867).

The spelling of 13221614064636 in words is "thirteen trillion, two hundred twenty-one billion, six hundred fourteen million, sixty-four thousand, six hundred thirty-six".