12740920581680 has 80 divisors (see below), whose sum is σ = 29792850278400. Its totient is φ = 5067111909120.

The previous prime is 12740920581677. The next prime is 12740920581703. The reversal of 12740920581680 is 8618502904721.

12740920581680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 30028451 + ... + 30449789.

It is an arithmetic number, because the mean of its divisors is an integer number (372410628480).

Almost surely, 2^{12740920581680} is an apocalyptic number.

12740920581680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12740920581680 is an abundant number, since it is smaller than the sum of its proper divisors (17051929696720).

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

12740920581680 is a wasteful number, since it uses less digits than its factorization.

12740920581680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423522 (or 423516 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 12740920581680 in words is "twelve trillion, seven hundred forty billion, nine hundred twenty million, five hundred eighty-one thousand, six hundred eighty".