12506132605 has 16 divisors (see below), whose sum is σ = 15270900480. Its totient is φ = 9830256768.

The previous prime is 12506132567. The next prime is 12506132629. The reversal of 12506132605 is 50623160521.

It is a cyclic number.

It is not a de Polignac number, because 12506132605 - 2⁷ = 12506132477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30856 + ... + 161134.

It is an arithmetic number, because the mean of its divisors is an integer number (954431280).

Almost surely, 2^12506132605 is an apocalyptic number.

It is an amenable number.

12506132605 is a deficient number, since it is larger than the sum of its proper divisors (2764767875).

12506132605 is a wasteful number, since it uses less digits than its factorization.

12506132605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130620.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 12506132605 in words is "twelve billion, five hundred six million, one hundred thirty-two thousand, six hundred five".