12740015616 has 80 divisors (see below), whose sum is σ = 34270139904. Its totient is φ = 4205389824.

The previous prime is 12740015591. The next prime is 12740015623. The reversal of 12740015616 is 61651004721.

12740015616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117945 + ... + 198471.

Almost surely, 2^12740015616 is an apocalyptic number.

12740015616 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 12740015616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17135069952).

12740015616 is an abundant number, since it is smaller than the sum of its proper divisors (21530124288).

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

12740015616 is an equidigital number, since it uses as much as digits as its factorization.

12740015616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80651 (or 80635 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 12740015616 in words is "twelve billion, seven hundred forty million, fifteen thousand, six hundred sixteen".