12881756160 has 672 divisors, whose sum is σ = 56371418880. Its totient is φ = 2717908992.

The previous prime is 12881756143. The next prime is 12881756203. The reversal of 12881756160 is 6165718821.

12881756160 is a `hidden beast` number, since 1 + 2 + 8 + 81 + 7 + 561 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 990904314 + ... + 990904326.

It is an arithmetic number, because the mean of its divisors is an integer number (83886040).

Almost surely, 2^12881756160 is an apocalyptic number.

12881756160 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 12881756160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28185709440).

12881756160 is an abundant number, since it is smaller than the sum of its proper divisors (43489662720).

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

12881756160 is an frugal number, since it uses more digits than its factorization.

12881756160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 12881756160 in words is "twelve billion, eight hundred eighty-one million, seven hundred fifty-six thousand, one hundred sixty".