6718981303056 has 160 divisors (see below), whose sum is σ = 19788866860032. Its totient is φ = 1944546081280.

The previous prime is 6718981303031. The next prime is 6718981303061. The reversal of 6718981303056 is 6503031898176.

It is a super-2 number, since 2×6718981303056² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6718981302987 and 6718981303005.

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, 7506391 + ... + 8353673.

Almost surely, 2^{6718981303056} is an apocalyptic number.

6718981303056 is a gapful number since it is divisible by the number (66) 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 6718981303056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9894433430016).

6718981303056 is an abundant number, since it is smaller than the sum of its proper divisors (13069885556976).

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

6718981303056 is a wasteful number, since it uses less digits than its factorization.

6718981303056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847981 (or 847975 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 6718981303056 in words is "six trillion, seven hundred eighteen billion, nine hundred eighty-one million, three hundred three thousand, fifty-six".