13215455999 has 8 divisors (see below), whose sum is σ = 13373534160. Its totient is φ = 13057912000.

The previous prime is 13215455951. The next prime is 13215456013. The reversal of 13215455999 is 99955451231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13215455999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13215455999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215455399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83654 + ... + 182835.

It is an arithmetic number, because the mean of its divisors is an integer number (1671691770).

Almost surely, 2^13215455999 is an apocalyptic number.

13215455999 is a deficient number, since it is larger than the sum of its proper divisors (158078161).

13215455999 is a wasteful number, since it uses less digits than its factorization.

13215455999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267081.

The product of its digits is 2187000, while the sum is 53.

The spelling of 13215455999 in words is "thirteen billion, two hundred fifteen million, four hundred fifty-five thousand, nine hundred ninety-nine".