12365344001665 has 32 divisors (see below), whose sum is σ = 15703685470080. Its totient is φ = 9321067892736.

The previous prime is 12365344001663. The next prime is 12365344001861. The reversal of 12365344001665 is 56610044356321.

It is a cyclic number.

It is not a de Polignac number, because 12365344001665 - 2¹ = 12365344001663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12365344001663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88176294 + ... + 88316416.

It is an arithmetic number, because the mean of its divisors is an integer number (490740170940).

Almost surely, 2^{12365344001665} is an apocalyptic number.

It is an amenable number.

12365344001665 is a deficient number, since it is larger than the sum of its proper divisors (3338341468415).

12365344001665 is a wasteful number, since it uses less digits than its factorization.

12365344001665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145153.

The product of its (nonzero) digits is 1555200, while the sum is 46.

Adding to 12365344001665 its reverse (56610044356321), we get a palindrome (68975388357986).

The spelling of 12365344001665 in words is "twelve trillion, three hundred sixty-five billion, three hundred forty-four million, one thousand, six hundred sixty-five".