12446991416 has 32 divisors (see below), whose sum is σ = 23637398400. Its totient is φ = 6143800800.

The previous prime is 12446991413. The next prime is 12446991419. The reversal of 12446991416 is 61419964421.

It is an interprime number because it is at equal distance from previous prime (12446991413) and next prime (12446991419).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12446991413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957005 + ... + 969923.

It is an arithmetic number, because the mean of its divisors is an integer number (738668700).

Almost surely, 2^12446991416 is an apocalyptic number.

It is an amenable number.

12446991416 is a deficient number, since it is larger than the sum of its proper divisors (11190406984).

12446991416 is a wasteful number, since it uses less digits than its factorization.

12446991416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14459 (or 14455 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The spelling of 12446991416 in words is "twelve billion, four hundred forty-six million, nine hundred ninety-one thousand, four hundred sixteen".