6678650880 has 672 divisors, whose sum is σ = 26620671168. Its totient is φ = 1592524800.

The previous prime is 6678650873. The next prime is 6678650899. The reversal of 6678650880 is 880568766.

6678650880 is a `hidden beast` number, since 66 + 78 + 6 + 508 + 8 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 109486050 + ... + 109486110.

It is an arithmetic number, because the mean of its divisors is an integer number (39614094).

Almost surely, 2^6678650880 is an apocalyptic number.

6678650880 is a gapful number since it is divisible by the number (60) 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 6678650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13310335584).

6678650880 is an abundant number, since it is smaller than the sum of its proper divisors (19942020288).

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

6678650880 is an equidigital number, since it uses as much as digits as its factorization.

6678650880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The square root of 6678650880 is about 81723.0131603088. The cubic root of 6678650880 is about 1883.1991403242.

The spelling of 6678650880 in words is "six billion, six hundred seventy-eight million, six hundred fifty thousand, eight hundred eighty".