13215664413 has 36 divisors (see below), whose sum is σ = 22299001920. Its totient is φ = 7520150736.

The previous prime is 13215664409. The next prime is 13215664417. The reversal of 13215664413 is 31446651231.

13215664413 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 5 + 6 + 644 + 1 + 3 = 666.

13215664413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13215664409) and next prime (13215664417).

It is not a de Polignac number, because 13215664413 - 2² = 13215664409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215664417) 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 35 ways as a sum of consecutive naturals, for example, 42706 + ... + 168092.

It is an arithmetic number, because the mean of its divisors is an integer number (619416720).

Almost surely, 2^13215664413 is an apocalyptic number.

It is an amenable number.

13215664413 is a deficient number, since it is larger than the sum of its proper divisors (9083337507).

13215664413 is a wasteful number, since it uses less digits than its factorization.

13215664413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125646 (or 125636 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 13215664413 in words is "thirteen billion, two hundred fifteen million, six hundred sixty-four thousand, four hundred thirteen".