6613725616 has 40 divisors (see below), whose sum is σ = 13294483920. Its totient is φ = 3183554304.

The previous prime is 6613725607. The next prime is 6613725619. The reversal of 6613725616 is 6165273166.

It is not an unprimeable number, because it can be changed into a prime (6613725619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140470 + ... + 181546.

It is an arithmetic number, because the mean of its divisors is an integer number (332362098).

Almost surely, 2^6613725616 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 6613725616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6647241960).

6613725616 is an abundant number, since it is smaller than the sum of its proper divisors (6680758304).

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

6613725616 is a wasteful number, since it uses less digits than its factorization.

6613725616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41461 (or 41455 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 6613725616 is about 81324.8154993296. The cubic root of 6613725616 is about 1877.0768681975.

The spelling of 6613725616 in words is "six billion, six hundred thirteen million, seven hundred twenty-five thousand, six hundred sixteen".