5645564568 has 96 divisors (see below), whose sum is σ = 18121608960. Its totient is φ = 1613014560.

The previous prime is 5645564549. The next prime is 5645564569. The reversal of 5645564568 is 8654655465.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5645564569) 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, 193828 + ... + 221043.

It is an arithmetic number, because the mean of its divisors is an integer number (188766760).

Almost surely, 2^5645564568 is an apocalyptic number.

It is an amenable number.

5645564568 is an abundant number, since it is smaller than the sum of its proper divisors (12476044392).

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

5645564568 is a wasteful number, since it uses less digits than its factorization.

5645564568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414899 (or 414883 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 54.

The square root of 5645564568 is about 75136.9720443937. The cubic root of 5645564568 is about 1780.6113045753.

The spelling of 5645564568 in words is "five billion, six hundred forty-five million, five hundred sixty-four thousand, five hundred sixty-eight".