12516419306 has 8 divisors (see below), whose sum is σ = 18775194660. Its totient is φ = 6258021088.

The previous prime is 12516419249. The next prime is 12516419323. The reversal of 12516419306 is 60391461521.

12516419306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11701830625 + 814588681 = 108175^2 + 28541^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12516419306.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13190 + ... + 158766.

Almost surely, 2^12516419306 is an apocalyptic number.

12516419306 is a deficient number, since it is larger than the sum of its proper divisors (6258775354).

12516419306 is a wasteful number, since it uses less digits than its factorization.

12516419306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188568.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 12516419306 in words is "twelve billion, five hundred sixteen million, four hundred nineteen thousand, three hundred six".