12501563266 has 8 divisors (see below), whose sum is σ = 19739310480. Its totient is φ = 5921793108.

The previous prime is 12501563251. The next prime is 12501563279. The reversal of 12501563266 is 66236510521.

12501563266 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 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, 164494216 + ... + 164494291.

It is an arithmetic number, because the mean of its divisors is an integer number (2467413810).

Almost surely, 2^12501563266 is an apocalyptic number.

12501563266 is a deficient number, since it is larger than the sum of its proper divisors (7237747214).

12501563266 is a wasteful number, since it uses less digits than its factorization.

12501563266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328988528.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 12501563266 in words is "twelve billion, five hundred one million, five hundred sixty-three thousand, two hundred sixty-six".