12816554341 has 4 divisors (see below), whose sum is σ = 12836364192. Its totient is φ = 12796744492.

The previous prime is 12816554327. The next prime is 12816554351. The reversal of 12816554341 is 14345561821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14345561821 = 67 ⋅214112863.

It is a cyclic number.

It is not a de Polignac number, because 12816554341 - 2¹¹ = 12816552293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12816554294 and 12816554303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816554351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9903955 + ... + 9905248.

It is an arithmetic number, because the mean of its divisors is an integer number (3209091048).

Almost surely, 2^12816554341 is an apocalyptic number.

It is an amenable number.

12816554341 is a deficient number, since it is larger than the sum of its proper divisors (19809851).

12816554341 is an equidigital number, since it uses as much as digits as its factorization.

12816554341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19809850.

The product of its digits is 115200, while the sum is 40.

The spelling of 12816554341 in words is "twelve billion, eight hundred sixteen million, five hundred fifty-four thousand, three hundred forty-one".