13321385615 has 8 divisors (see below), whose sum is σ = 16020341568. Its totient is φ = 10633989280.

The previous prime is 13321385603. The next prime is 13321385633. The reversal of 13321385615 is 51658312331.

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

It is not a de Polignac number, because 13321385615 - 2¹² = 13321381519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887367 + ... + 2891976.

It is an arithmetic number, because the mean of its divisors is an integer number (2002542696).

Almost surely, 2^13321385615 is an apocalyptic number.

13321385615 is a deficient number, since it is larger than the sum of its proper divisors (2698955953).

13321385615 is an equidigital number, since it uses as much as digits as its factorization.

13321385615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779809.

The product of its digits is 64800, while the sum is 38.

Adding to 13321385615 its reverse (51658312331), we get a palindrome (64979697946).

The spelling of 13321385615 in words is "thirteen billion, three hundred twenty-one million, three hundred eighty-five thousand, six hundred fifteen".