6617220744 has 64 divisors (see below), whose sum is σ = 17455608000. Its totient is φ = 2084624640.

The previous prime is 6617220721. The next prime is 6617220751. The reversal of 6617220744 is 4470227166.

It is a super-2 number, since 2×6617220744² = 87575220749647827072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174742 + ... + 209210.

It is an arithmetic number, because the mean of its divisors is an integer number (272743875).

Almost surely, 2^6617220744 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 6617220744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8727804000).

6617220744 is an abundant number, since it is smaller than the sum of its proper divisors (10838387256).

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

6617220744 is a wasteful number, since it uses less digits than its factorization.

6617220744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34918 (or 34914 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 6617220744 is about 81346.3013541489. The cubic root of 6617220744 is about 1877.4074669630.

The spelling of 6617220744 in words is "six billion, six hundred seventeen million, two hundred twenty thousand, seven hundred forty-four".