5666320 has 80 divisors (see below), whose sum is σ = 14784768. Its totient is φ = 2001920.

The previous prime is 5666317. The next prime is 5666341. The reversal of 5666320 is 236665.

It is a tau number, because it is divible by the number of its divisors (80).

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, 41292 + ... + 41428.

Almost surely, 2^5666320 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 5666320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7392384).

5666320 is an abundant number, since it is smaller than the sum of its proper divisors (9118448).

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

5666320 is a wasteful number, since it uses less digits than its factorization.

5666320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 5666320 is about 2380.4033271696. The cubic root of 5666320 is about 178.2790723982.

It can be divided in two parts, 566 and 6320, that added together give a palindrome (6886).

The spelling of 5666320 in words is "five million, six hundred sixty-six thousand, three hundred twenty".