12188605260 has 384 divisors, whose sum is σ = 41455411200. Its totient is φ = 2643148800.

The previous prime is 12188605259. The next prime is 12188605267. The reversal of 12188605260 is 6250688121.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12188605267) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 25445701 + ... + 25446179.

It is an arithmetic number, because the mean of its divisors is an integer number (107956800).

Almost surely, 2^12188605260 is an apocalyptic number.

12188605260 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 12188605260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20727705600).

12188605260 is an abundant number, since it is smaller than the sum of its proper divisors (29266805940).

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

12188605260 is a wasteful number, since it uses less digits than its factorization.

12188605260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 12188605260 in words is "twelve billion, one hundred eighty-eight million, six hundred five thousand, two hundred sixty".