12445224339456 has 144 divisors (see below), whose sum is σ = 38058452113500. Its totient is φ = 3904384008192.

The previous prime is 12445224339391. The next prime is 12445224339463. The reversal of 12445224339456 is 65493342254421.

It is a happy number.

12445224339456 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 5 + 2 + 243 + 394 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9725416473600 + 2719807865856 = 3118560^2 + 1649184^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19545381 + ... + 20172068.

Almost surely, 2^{12445224339456} is an apocalyptic number.

12445224339456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12445224339456 is an abundant number, since it is smaller than the sum of its proper divisors (25613227774044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12445224339456 is a wasteful number, since it uses less digits than its factorization.

12445224339456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39717494 (or 39717471 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 54.

The spelling of 12445224339456 in words is "twelve trillion, four hundred forty-five billion, two hundred twenty-four million, three hundred thirty-nine thousand, four hundred fifty-six".