12004385266 has 4 divisors (see below), whose sum is σ = 18006577902. Its totient is φ = 6002192632.

The previous prime is 12004385249. The next prime is 12004385273. The reversal of 12004385266 is 66258340021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9287369641 + 2717015625 = 96371^2 + 52125^2 .

It is a super-2 number, since 2×12004385266² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3001096315 + ... + 3001096318.

Almost surely, 2^12004385266 is an apocalyptic number.

12004385266 is a deficient number, since it is larger than the sum of its proper divisors (6002192636).

12004385266 is an equidigital number, since it uses as much as digits as its factorization.

12004385266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6002192635.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 12004385266 in words is "twelve billion, four million, three hundred eighty-five thousand, two hundred sixty-six".