12543176552 has 16 divisors (see below), whose sum is σ = 23782709700. Its totient is φ = 6201120640.

The previous prime is 12543176549. The next prime is 12543176561. The reversal of 12543176552 is 25567134521.

It can be written as a sum of positive squares in 2 ways, for example, as 11945178436 + 597998116 = 109294^2 + 24454^2 .

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 3 ways as a sum of consecutive naturals, for example, 8807699 + ... + 8809122.

Almost surely, 2^12543176552 is an apocalyptic number.

It is an amenable number.

12543176552 is a deficient number, since it is larger than the sum of its proper divisors (11239533148).

12543176552 is a wasteful number, since it uses less digits than its factorization.

12543176552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17616916 (or 17616912 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The spelling of 12543176552 in words is "twelve billion, five hundred forty-three million, one hundred seventy-six thousand, five hundred fifty-two".