12516563245 has 8 divisors (see below), whose sum is σ = 15041616480. Its totient is φ = 9998756880.

The previous prime is 12516563243. The next prime is 12516563287. The reversal of 12516563245 is 54236561521.

12516563245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12516563245 - 2¹ = 12516563243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12516563198 and 12516563207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516563243) 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 7 ways as a sum of consecutive naturals, for example, 1807915 + ... + 1814824.

It is an arithmetic number, because the mean of its divisors is an integer number (1880202060).

Almost surely, 2^12516563245 is an apocalyptic number.

It is an amenable number.

12516563245 is a deficient number, since it is larger than the sum of its proper divisors (2525053235).

12516563245 is an equidigital number, since it uses as much as digits as its factorization.

12516563245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623435.

The product of its digits is 216000, while the sum is 40.

The spelling of 12516563245 in words is "twelve billion, five hundred sixteen million, five hundred sixty-three thousand, two hundred forty-five".