12512067557 has 24 divisors (see below), whose sum is σ = 13918716000. Its totient is φ = 11237996000.

The previous prime is 12512067553. The next prime is 12512067583. The reversal of 12512067557 is 75576021521.

It is a happy number.

It is not a de Polignac number, because 12512067557 - 2² = 12512067553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512067553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8346194 + ... + 8347692.

It is an arithmetic number, because the mean of its divisors is an integer number (579946500).

Almost surely, 2^12512067557 is an apocalyptic number.

It is an amenable number.

12512067557 is a deficient number, since it is larger than the sum of its proper divisors (1406648443).

12512067557 is a wasteful number, since it uses less digits than its factorization.

12512067557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 12512067557 in words is "twelve billion, five hundred twelve million, sixty-seven thousand, five hundred fifty-seven".