12520505526205 has 16 divisors (see below), whose sum is σ = 15060597531264. Its totient is φ = 9992425101120.

The previous prime is 12520505526157. The next prime is 12520505526211. The reversal of 12520505526205 is 50262550502521.

12520505526205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12520505526205 - 2⁷ = 12520505526077 is a prime.

It is a Duffinian number.

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, 5954944 + ... + 7778326.

It is an arithmetic number, because the mean of its divisors is an integer number (941287345704).

Almost surely, 2^{12520505526205} is an apocalyptic number.

It is an amenable number.

12520505526205 is a deficient number, since it is larger than the sum of its proper divisors (2540092005059).

12520505526205 is a wasteful number, since it uses less digits than its factorization.

12520505526205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826676.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 12520505526205 in words is "twelve trillion, five hundred twenty billion, five hundred five million, five hundred twenty-six thousand, two hundred five".