6617323240 has 128 divisors (see below), whose sum is σ = 17345664000. Its totient is φ = 2248243200.

The previous prime is 6617323231. The next prime is 6617323241. The reversal of 6617323240 is 423237166.

It is a junction number, because it is equal to n+sod(n) for n = 6617323196 and 6617323205.

It is not an unprimeable number, because it can be changed into a prime (6617323241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387196 + ... + 403924.

It is an arithmetic number, because the mean of its divisors is an integer number (135513000).

Almost surely, 2^6617323240 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 6617323240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8672832000).

6617323240 is an abundant number, since it is smaller than the sum of its proper divisors (10728340760).

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

6617323240 is a wasteful number, since it uses less digits than its factorization.

6617323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16811 (or 16807 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 6617323240 is about 81346.9313496213. The cubic root of 6617323240 is about 1877.4171601443.

The spelling of 6617323240 in words is "six billion, six hundred seventeen million, three hundred twenty-three thousand, two hundred forty".