12523653623220 has 192 divisors, whose sum is σ = 38002148352000. Its totient is φ = 3071189468160.

The previous prime is 12523653623213. The next prime is 12523653623237. The reversal of 12523653623220 is 2232635632521.

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, 8628037 + ... + 9974483.

It is an arithmetic number, because the mean of its divisors is an integer number (197927856000).

Almost surely, 2^{12523653623220} is an apocalyptic number.

12523653623220 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 12523653623220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19001074176000).

12523653623220 is an abundant number, since it is smaller than the sum of its proper divisors (25478494728780).

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

12523653623220 is a wasteful number, since it uses less digits than its factorization.

12523653623220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346718 (or 1346716 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 12523653623220 in words is "twelve trillion, five hundred twenty-three billion, six hundred fifty-three million, six hundred twenty-three thousand, two hundred twenty".