12744361660 has 12 divisors (see below), whose sum is σ = 26763159528. Its totient is φ = 5097744656.

The previous prime is 12744361639. The next prime is 12744361667. The reversal of 12744361660 is 6616344721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744361667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318609022 + ... + 318609061.

It is an arithmetic number, because the mean of its divisors is an integer number (2230263294).

Almost surely, 2^12744361660 is an apocalyptic number.

12744361660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12744361660 is an abundant number, since it is smaller than the sum of its proper divisors (14018797868).

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

12744361660 is a wasteful number, since it uses less digits than its factorization.

12744361660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637218092 (or 637218090 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 12744361660 in words is "twelve billion, seven hundred forty-four million, three hundred sixty-one thousand, six hundred sixty".