12651066412 has 6 divisors (see below), whose sum is σ = 22139366228. Its totient is φ = 6325533204.

The previous prime is 12651066371. The next prime is 12651066413. The reversal of 12651066412 is 21466015621.

It is not an unprimeable number, because it can be changed into a prime (12651066413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1581383298 + ... + 1581383305.

Almost surely, 2^12651066412 is an apocalyptic number.

It is an amenable number.

12651066412 is a deficient number, since it is larger than the sum of its proper divisors (9488299816).

12651066412 is a wasteful number, since it uses less digits than its factorization.

12651066412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162766607 (or 3162766605 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 12651066412 in words is "twelve billion, six hundred fifty-one million, sixty-six thousand, four hundred twelve".