12236577920 has 384 divisors, whose sum is σ = 36100753920. Its totient is φ = 3948134400.

The previous prime is 12236577911. The next prime is 12236577989. The reversal of 12236577920 is 2977563221.

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 47 ways as a sum of consecutive naturals, for example, 39858407 + ... + 39858713.

It is an arithmetic number, because the mean of its divisors is an integer number (94012380).

Almost surely, 2^12236577920 is an apocalyptic number.

12236577920 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 12236577920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18050376960).

12236577920 is an abundant number, since it is smaller than the sum of its proper divisors (23864176000).

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

12236577920 is a wasteful number, since it uses less digits than its factorization.

12236577920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 44.

The spelling of 12236577920 in words is "twelve billion, two hundred thirty-six million, five hundred seventy-seven thousand, nine hundred twenty".