12500000006 has 32 divisors (see below), whose sum is σ = 21957959520. Its totient is φ = 5283104256.

The previous prime is 12499999999. The next prime is 12500000027. The reversal of 12500000006 is 60000000521.

12500000006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 365816 + ... + 398523.

It is an arithmetic number, because the mean of its divisors is an integer number (686186235).

Almost surely, 2^12500000006 is an apocalyptic number.

12500000006 is a deficient number, since it is larger than the sum of its proper divisors (9457959514).

12500000006 is a wasteful number, since it uses less digits than its factorization.

12500000006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764408.

The product of its (nonzero) digits is 60, while the sum is 14.

Adding to 12500000006 its reverse (60000000521), we get a palindrome (72500000527).

The spelling of 12500000006 in words is "twelve billion, five hundred million, six", and thus it is an aban number.