13122616623815 has 4 divisors (see below), whose sum is σ = 15747139948584. Its totient is φ = 10498093299048.

The previous prime is 13122616623769. The next prime is 13122616623829. The reversal of 13122616623815 is 51832661622131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13122616623815 - 2¹⁴ = 13122616607431 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 13122616623815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312261662377 + ... + 1312261662386.

It is an arithmetic number, because the mean of its divisors is an integer number (3936784987146).

Almost surely, 2^{13122616623815} is an apocalyptic number.

13122616623815 is a deficient number, since it is larger than the sum of its proper divisors (2624523324769).

13122616623815 is an equidigital number, since it uses as much as digits as its factorization.

13122616623815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624523324768.

The product of its digits is 622080, while the sum is 47.

The spelling of 13122616623815 in words is "thirteen trillion, one hundred twenty-two billion, six hundred sixteen million, six hundred twenty-three thousand, eight hundred fifteen".