5666220 has 96 divisors (see below), whose sum is σ = 20160000. Its totient is φ = 1294272.

The previous prime is 5666209. The next prime is 5666233. The reversal of 5666220 is 226665.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3031 + ... + 4529.

It is an arithmetic number, because the mean of its divisors is an integer number (210000).

Almost surely, 2^5666220 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 5666220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10080000).

5666220 is an abundant number, since it is smaller than the sum of its proper divisors (14493780).

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

5666220 is a wasteful number, since it uses less digits than its factorization.

5666220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 5666220 is about 2380.3823222331. The cubic root of 5666220 is about 178.2780236275.

It can be divided in two parts, 5666 and 220, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 5666220 in words is "five million, six hundred sixty-six thousand, two hundred twenty".