12776160128 has 32 divisors (see below), whose sum is σ = 25869776520. Its totient is φ = 6283353600.

The previous prime is 12776160121. The next prime is 12776160157. The reversal of 12776160128 is 82106167721.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776160121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810338 + ... + 825953.

Almost surely, 2^12776160128 is an apocalyptic number.

It is an amenable number.

12776160128 is an abundant number, since it is smaller than the sum of its proper divisors (13093616392).

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

12776160128 is an equidigital number, since it uses as much as digits as its factorization.

12776160128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636366 (or 1636354 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 12776160128 in words is "twelve billion, seven hundred seventy-six million, one hundred sixty thousand, one hundred twenty-eight".