12198647466 has 40 divisors (see below), whose sum is σ = 28941895620. Its totient is φ = 3827025792.

The previous prime is 12198647459. The next prime is 12198647491. The reversal of 12198647466 is 66474689121.

12198647466 is a `hidden beast` number, since 1 + 21 + 98 + 6 + 474 + 66 = 666.

12198647466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9491630625 + 2707016841 = 97425^2 + 52029^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2211961 + ... + 2217468.

Almost surely, 2^12198647466 is an apocalyptic number.

12198647466 is an abundant number, since it is smaller than the sum of its proper divisors (16743248154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12198647466 is a wasteful number, since it uses less digits than its factorization.

12198647466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429460 (or 4429451 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 12198647466 in words is "twelve billion, one hundred ninety-eight million, six hundred forty-seven thousand, four hundred sixty-six".