12446344660 has 48 divisors (see below), whose sum is σ = 27285302016. Its totient is φ = 4760059392.

The previous prime is 12446344643. The next prime is 12446344661. The reversal of 12446344660 is 6644364421.

It is a super-2 number, since 2×12446344660² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12446344661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519897 + ... + 1528063.

It is an arithmetic number, because the mean of its divisors is an integer number (568443792).

Almost surely, 2^12446344660 is an apocalyptic number.

12446344660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12446344660 is an abundant number, since it is smaller than the sum of its proper divisors (14838957356).

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

12446344660 is a wasteful number, since it uses less digits than its factorization.

12446344660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512 (or 11510 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 12446344660 in words is "twelve billion, four hundred forty-six million, three hundred forty-four thousand, six hundred sixty".