12661674760 has 64 divisors (see below), whose sum is σ = 32638492800. Its totient is φ = 4330492416.

The previous prime is 12661674757. The next prime is 12661674793. The reversal of 12661674760 is 6747616621.

It is a self number, because there is not a number n which added to its sum of digits gives 12661674760.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59239 + ... + 169801.

It is an arithmetic number, because the mean of its divisors is an integer number (509976450).

Almost surely, 2^12661674760 is an apocalyptic number.

12661674760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12661674760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16319246400).

12661674760 is an abundant number, since it is smaller than the sum of its proper divisors (19976818040).

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

12661674760 is a wasteful number, since it uses less digits than its factorization.

12661674760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110990 (or 110986 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 12661674760 in words is "twelve billion, six hundred sixty-one million, six hundred seventy-four thousand, seven hundred sixty".