12255896380 has 192 divisors, whose sum is σ = 33359413248. Its totient is φ = 3675893760.

The previous prime is 12255896369. The next prime is 12255896417. The reversal of 12255896380 is 8369855221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4728885 + ... + 4731475.

It is an arithmetic number, because the mean of its divisors is an integer number (173746944).

Almost surely, 2^12255896380 is an apocalyptic number.

12255896380 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 12255896380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16679706624).

12255896380 is an abundant number, since it is smaller than the sum of its proper divisors (21103516868).

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

12255896380 is a wasteful number, since it uses less digits than its factorization.

12255896380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 12255896380 in words is "twelve billion, two hundred fifty-five million, eight hundred ninety-six thousand, three hundred eighty".