6677708856 has 128 divisors (see below), whose sum is σ = 20736038400. Its totient is φ = 1744934400.

The previous prime is 6677708837. The next prime is 6677708923. The reversal of 6677708856 is 6588077766.

It is a self number, because there is not a number n which added to its sum of digits gives 6677708856.

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, 224031 + ... + 252081.

It is an arithmetic number, because the mean of its divisors is an integer number (162000300).

Almost surely, 2^6677708856 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 6677708856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10368019200).

6677708856 is an abundant number, since it is smaller than the sum of its proper divisors (14058329544).

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

6677708856 is a wasteful number, since it uses less digits than its factorization.

6677708856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28189 (or 28185 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The square root of 6677708856 is about 81717.2494397603. The cubic root of 6677708856 is about 1883.1105943871.

The spelling of 6677708856 in words is "six billion, six hundred seventy-seven million, seven hundred eight thousand, eight hundred fifty-six".