12719206656 has 144 divisors (see below), whose sum is σ = 40506520320. Its totient is φ = 3913574400.

The previous prime is 12719206649. The next prime is 12719206667. The reversal of 12719206656 is 65660291721.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19081 + ... + 160631.

It is an arithmetic number, because the mean of its divisors is an integer number (281295280).

Almost surely, 2^12719206656 is an apocalyptic number.

12719206656 is a gapful number since it is divisible by the number (16) 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 12719206656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20253260160).

12719206656 is an abundant number, since it is smaller than the sum of its proper divisors (27787313664).

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

12719206656 is a wasteful number, since it uses less digits than its factorization.

12719206656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141589 (or 141569 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 12719206656 in words is "twelve billion, seven hundred nineteen million, two hundred six thousand, six hundred fifty-six".