12660712000 has 56 divisors (see below), whose sum is σ = 31354273080. Its totient is φ = 5064281600.

The previous prime is 12660711991. The next prime is 12660712007. The reversal of 12660712000 is 21706621.

It can be written as a sum of positive squares in 4 ways, for example, as 387617344 + 12273094656 = 19688^2 + 110784^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12660712007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783295 + ... + 799294.

Almost surely, 2^12660712000 is an apocalyptic number.

12660712000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12660712000 is an abundant number, since it is smaller than the sum of its proper divisors (18693561080).

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

12660712000 is an equidigital number, since it uses as much as digits as its factorization.

12660712000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582616 (or 1582596 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 12660712000 in words is "twelve billion, six hundred sixty million, seven hundred twelve thousand".