12128465176 has 32 divisors (see below), whose sum is σ = 24084103680. Its totient is φ = 5706201600.

The previous prime is 12128465137. The next prime is 12128465183. The reversal of 12128465176 is 67156482121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845746 + ... + 859966.

It is an arithmetic number, because the mean of its divisors is an integer number (752628240).

Almost surely, 2^12128465176 is an apocalyptic number.

It is an amenable number.

12128465176 is a deficient number, since it is larger than the sum of its proper divisors (11955638504).

12128465176 is a wasteful number, since it uses less digits than its factorization.

12128465176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20515 (or 20511 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The spelling of 12128465176 in words is "twelve billion, one hundred twenty-eight million, four hundred sixty-five thousand, one hundred seventy-six".