12004232566 has 96 divisors (see below), whose sum is σ = 20615364000. Its totient is φ = 5220246528.

The previous prime is 12004232551. The next prime is 12004232599. The reversal of 12004232566 is 66523240021.

It is a super-2 number, since 2×12004232566² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110130520 + ... + 110130628.

It is an arithmetic number, because the mean of its divisors is an integer number (214743375).

Almost surely, 2^12004232566 is an apocalyptic number.

12004232566 is a deficient number, since it is larger than the sum of its proper divisors (8611131434).

12004232566 is a wasteful number, since it uses less digits than its factorization.

12004232566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 12004232566 its reverse (66523240021), we get a palindrome (78527472587).

The spelling of 12004232566 in words is "twelve billion, four million, two hundred thirty-two thousand, five hundred sixty-six".