12365216443045 has 16 divisors (see below), whose sum is σ = 14962506419952. Its totient is φ = 9809651681280.

The previous prime is 12365216443009. The next prime is 12365216443109. The reversal of 12365216443045 is 54034461256321.

It can be written as a sum of positive squares in 8 ways, for example, as 2803725871489 + 9561490571556 = 1674433^2 + 3092166^2 .

It is not a de Polignac number, because 12365216443045 - 2⁹ = 12365216442533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12365216442986 and 12365216443004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19033542 + ... + 19672471.

It is an arithmetic number, because the mean of its divisors is an integer number (935156651247).

Almost surely, 2^{12365216443045} is an apocalyptic number.

It is an amenable number.

12365216443045 is a deficient number, since it is larger than the sum of its proper divisors (2597289976907).

12365216443045 is a wasteful number, since it uses less digits than its factorization.

12365216443045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38706552.

The product of its (nonzero) digits is 2073600, while the sum is 46.

Adding to 12365216443045 its reverse (54034461256321), we get a palindrome (66399677699366).

The spelling of 12365216443045 in words is "twelve trillion, three hundred sixty-five billion, two hundred sixteen million, four hundred forty-three thousand, forty-five".