12001138466 has 8 divisors (see below), whose sum is σ = 18011183004. Its totient is φ = 5997410800.

The previous prime is 12001138433. The next prime is 12001138483. The reversal of 12001138466 is 66483110021.

12001138466 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 11542279225 + 458859241 = 107435^2 + 21421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1574465 + ... + 1582068.

Almost surely, 2^12001138466 is an apocalyptic number.

12001138466 is a deficient number, since it is larger than the sum of its proper divisors (6010044538).

12001138466 is a wasteful number, since it uses less digits than its factorization.

12001138466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3158436.

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 12001138466 its reverse (66483110021), we get a palindrome (78484248487).

The spelling of 12001138466 in words is "twelve billion, one million, one hundred thirty-eight thousand, four hundred sixty-six".