12631644016 has 10 divisors (see below), whose sum is σ = 24473810312. Its totient is φ = 6315822000.

The previous prime is 12631643989. The next prime is 12631644017. The reversal of 12631644016 is 61044613621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631644017) 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 as a sum of consecutive naturals, namely, 394738860 + ... + 394738891.

Almost surely, 2^12631644016 is an apocalyptic number.

12631644016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12631644016 is a deficient number, since it is larger than the sum of its proper divisors (11842166296).

12631644016 is an equidigital number, since it uses as much as digits as its factorization.

12631644016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789477759 (or 789477753 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 12631644016 in words is "twelve billion, six hundred thirty-one million, six hundred forty-four thousand, sixteen".