12630566651 has 2 divisors, whose sum is σ = 12630566652. Its totient is φ = 12630566650.

The previous prime is 12630566621. The next prime is 12630566693. The reversal of 12630566651 is 15666503621.

It is a weak prime.

It is an emirp because it is prime and its reverse (15666503621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12630566651 - 2¹⁴ = 12630550267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12630566599 and 12630566608.

It is not a weakly prime, because it can be changed into another prime (12630566621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6315283325 + 6315283326.

It is an arithmetic number, because the mean of its divisors is an integer number (6315283326).

Almost surely, 2^12630566651 is an apocalyptic number.

12630566651 is a deficient number, since it is larger than the sum of its proper divisors (1).

12630566651 is an equidigital number, since it uses as much as digits as its factorization.

12630566651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 12630566651 in words is "twelve billion, six hundred thirty million, five hundred sixty-six thousand, six hundred fifty-one".