12446666666660 has 12 divisors (see below), whose sum is σ = 26138000000028. Its totient is φ = 4978666666656.

The previous prime is 12446666666639. The next prime is 12446666666803. The reversal of 12446666666660 is 6666666664421.

12446666666660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9056921718784 + 3389744947876 = 3009472^2 + 1841126^2 .

It is a super-2 number, since 2×12446666666660² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311166666647 + ... + 311166666686.

It is an arithmetic number, because the mean of its divisors is an integer number (2178166666669).

Almost surely, 2^{12446666666660} is an apocalyptic number.

12446666666660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12446666666660 is an abundant number, since it is smaller than the sum of its proper divisors (13691333333368).

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

12446666666660 is a wasteful number, since it uses less digits than its factorization.

12446666666660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622333333342 (or 622333333340 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 65.

The spelling of 12446666666660 in words is "twelve trillion, four hundred forty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty".