5645566080 has 512 divisors, whose sum is σ = 24934348800. Its totient is φ = 1172828160.

The previous prime is 5645566051. The next prime is 5645566081. The reversal of 5645566080 is 806655465.

It is a happy number.

5645566080 is a `hidden beast` number, since 5 + 6 + 4 + 5 + 566 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (5645566081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1328439 + ... + 1332681.

It is an arithmetic number, because the mean of its divisors is an integer number (48699900).

Almost surely, 2^5645566080 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 5645566080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12467174400).

5645566080 is an abundant number, since it is smaller than the sum of its proper divisors (19288782720).

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

5645566080 is a wasteful number, since it uses less digits than its factorization.

5645566080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 5645566080 is about 75136.9821060175. The cubic root of 5645566080 is about 1780.6114635369.

The spelling of 5645566080 in words is "five billion, six hundred forty-five million, five hundred sixty-six thousand, eighty".