12651034066 has 32 divisors (see below), whose sum is σ = 21429619200. Its totient is φ = 5548529280.

The previous prime is 12651034013. The next prime is 12651034069. The reversal of 12651034066 is 66043015621.

It is not an unprimeable number, because it can be changed into a prime (12651034069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1116606 + ... + 1127878.

It is an arithmetic number, because the mean of its divisors is an integer number (669675600).

Almost surely, 2^12651034066 is an apocalyptic number.

12651034066 is a deficient number, since it is larger than the sum of its proper divisors (8778585134).

12651034066 is a wasteful number, since it uses less digits than its factorization.

12651034066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 12651034066 its reverse (66043015621), we get a palindrome (78694049687).

The spelling of 12651034066 in words is "twelve billion, six hundred fifty-one million, thirty-four thousand, sixty-six".