12445446136616 has 8 divisors (see below), whose sum is σ = 23335211506170. Its totient is φ = 6222723068304.

The previous prime is 12445446136561. The next prime is 12445446136657. The reversal of 12445446136616 is 61663164454421.

It can be written as a sum of positive squares in only one way, i.e., 8864851212100 + 3580594924516 = 2977390^2 + 1892246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777840383531 + ... + 777840383546.

Almost surely, 2^{12445446136616} is an apocalyptic number.

It is an amenable number.

12445446136616 is a deficient number, since it is larger than the sum of its proper divisors (10889765369554).

12445446136616 is a wasteful number, since it uses less digits than its factorization.

12445446136616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555680767083 (or 1555680767079 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 53.

The spelling of 12445446136616 in words is "twelve trillion, four hundred forty-five billion, four hundred forty-six million, one hundred thirty-six thousand, six hundred sixteen".