12646711296 has 384 divisors, whose sum is σ = 40144119600. Its totient is φ = 3822059520.

The previous prime is 12646711289. The next prime is 12646711307. The reversal of 12646711296 is 69211764621.

It is a tau number, because it is divible by the number of its divisors (384).

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, 207323106 + ... + 207323166.

Almost surely, 2^12646711296 is an apocalyptic number.

12646711296 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 12646711296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20072059800).

12646711296 is an abundant number, since it is smaller than the sum of its proper divisors (27497408304).

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

12646711296 is an equidigital number, since it uses as much as digits as its factorization.

12646711296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 122 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 12646711296 in words is "twelve billion, six hundred forty-six million, seven hundred eleven thousand, two hundred ninety-six".