6616608768 has 780 divisors, whose sum is σ = 25760957112. Its totient is φ = 1672151040.

The previous prime is 6616608737. The next prime is 6616608781. The reversal of 6616608768 is 8678066166.

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 59 ways as a sum of consecutive naturals, for example, 178827246 + ... + 178827282.

Almost surely, 2^6616608768 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 6616608768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12880478556).

6616608768 is an abundant number, since it is smaller than the sum of its proper divisors (19144348344).

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

6616608768 is a wasteful number, since it uses less digits than its factorization.

6616608768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 6616608768 is about 81342.5397193867. The cubic root of 6616608768 is about 1877.3495895057.

The spelling of 6616608768 in words is "six billion, six hundred sixteen million, six hundred eight thousand, seven hundred sixty-eight".