12344115561 has 16 divisors (see below), whose sum is σ = 16496098944. Its totient is φ = 8210795904.

The previous prime is 12344115547. The next prime is 12344115569. The reversal of 12344115561 is 16551144321.

12344115561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12344115561 - 2¹¹ = 12344113513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12344115569) 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 15 ways as a sum of consecutive naturals, for example, 2970261 + ... + 2974413.

It is an arithmetic number, because the mean of its divisors is an integer number (1031006184).

Almost surely, 2^12344115561 is an apocalyptic number.

It is an amenable number.

12344115561 is a deficient number, since it is larger than the sum of its proper divisors (4151983383).

12344115561 is a wasteful number, since it uses less digits than its factorization.

12344115561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160.

The product of its digits is 14400, while the sum is 33.

Adding to 12344115561 its reverse (16551144321), we get a palindrome (28895259882).

The spelling of 12344115561 in words is "twelve billion, three hundred forty-four million, one hundred fifteen thousand, five hundred sixty-one".