12620545468456 has 16 divisors (see below), whose sum is σ = 23766856917300. Its totient is φ = 6282716957184.

The previous prime is 12620545468441. The next prime is 12620545468459. The reversal of 12620545468456 is 65486454502621.

It can be written as a sum of positive squares in 2 ways, for example, as 10135729199556 + 2484816268900 = 3183666^2 + 1576330^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12620545468456.

It is not an unprimeable number, because it can be changed into a prime (12620545468459) 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 in 3 ways as a sum of consecutive naturals, for example, 3444470185 + ... + 3444473848.

Almost surely, 2^{12620545468456} is an apocalyptic number.

It is an amenable number.

12620545468456 is a deficient number, since it is larger than the sum of its proper divisors (11146311448844).

12620545468456 is a wasteful number, since it uses less digits than its factorization.

12620545468456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888944268 (or 6888944264 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 58.

The spelling of 12620545468456 in words is "twelve trillion, six hundred twenty billion, five hundred forty-five million, four hundred sixty-eight thousand, four hundred fifty-six".