12523606558 has 32 divisors (see below), whose sum is σ = 20086133760. Its totient is φ = 5845845600.

The previous prime is 12523606523. The next prime is 12523606573. The reversal of 12523606558 is 85560632521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198583 + ... + 253933.

It is an arithmetic number, because the mean of its divisors is an integer number (627691680).

Almost surely, 2^12523606558 is an apocalyptic number.

12523606558 is a deficient number, since it is larger than the sum of its proper divisors (7562527202).

12523606558 is a wasteful number, since it uses less digits than its factorization.

12523606558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55512.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 12523606558 in words is "twelve billion, five hundred twenty-three million, six hundred six thousand, five hundred fifty-eight".