5664816 has 120 divisors (see below), whose sum is σ = 17332224. Its totient is φ = 1788480.

The previous prime is 5664809. The next prime is 5664817. The reversal of 5664816 is 6184665.

5664816 is a `hidden beast` number, since 5 + 6 + 648 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5664817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120505 + ... + 120551.

Almost surely, 2^5664816 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 5664816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8666112).

5664816 is an abundant number, since it is smaller than the sum of its proper divisors (11667408).

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

5664816 is a wasteful number, since it uses less digits than its factorization.

5664816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 83 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 5664816 is about 2380.0873933534. The cubic root of 5664816 is about 178.2632975831.

The spelling of 5664816 in words is "five million, six hundred sixty-four thousand, eight hundred sixteen".