12465516535345 has 4 divisors (see below), whose sum is σ = 14958619842420. Its totient is φ = 9972413228272.

The previous prime is 12465516535319. The next prime is 12465516535397. The reversal of 12465516535345 is 54353561556421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8655528752784 + 3809987782561 = 2942028^2 + 1951919^2 .

It is a cyclic number.

It is not a de Polignac number, because 12465516535345 - 2⁴¹ = 10266493279793 is a prime.

It is a super-2 number, since 2×12465516535345² (a number of 27 digits) contains 22 as substring.

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, 1246551653530 + ... + 1246551653539.

It is an arithmetic number, because the mean of its divisors is an integer number (3739654960605).

Almost surely, 2^{12465516535345} is an apocalyptic number.

It is an amenable number.

12465516535345 is a deficient number, since it is larger than the sum of its proper divisors (2493103307075).

12465516535345 is an equidigital number, since it uses as much as digits as its factorization.

12465516535345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493103307074.

The product of its digits is 32400000, while the sum is 55.

The spelling of 12465516535345 in words is "twelve trillion, four hundred sixty-five billion, five hundred sixteen million, five hundred thirty-five thousand, three hundred forty-five".