12163038720 has 240 divisors, whose sum is σ = 45233475408. Its totient is φ = 2780037120.

The previous prime is 12163038709. The next prime is 12163038791. The reversal of 12163038720 is 2783036121.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360160 + ... + 392480.

Almost surely, 2^12163038720 is an apocalyptic number.

12163038720 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 12163038720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22616737704).

12163038720 is an abundant number, since it is smaller than the sum of its proper divisors (33070436688).

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

12163038720 is an equidigital number, since it uses as much as digits as its factorization.

12163038720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32361 (or 32338 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 12163038720 in words is "twelve billion, one hundred sixty-three million, thirty-eight thousand, seven hundred twenty".