6740067340656 has 160 divisors (see below), whose sum is σ = 20853762009920. Its totient is φ = 2071967579136.

The previous prime is 6740067340619. The next prime is 6740067340663. The reversal of 6740067340656 is 6560437600476.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5589270 + ... + 6687306.

It is an arithmetic number, because the mean of its divisors is an integer number (130336012562).

Almost surely, 2^{6740067340656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6740067340656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10426881004960).

6740067340656 is an abundant number, since it is smaller than the sum of its proper divisors (14113694669264).

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

6740067340656 is a wasteful number, since it uses less digits than its factorization.

6740067340656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099160 (or 1099148 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 6740067340656 in words is "six trillion, seven hundred forty billion, sixty-seven million, three hundred forty thousand, six hundred fifty-six".