566540320 has 48 divisors (see below), whose sum is σ = 1363725720. Its totient is φ = 222337024.

The previous prime is 566540297. The next prime is 566540327. The reversal of 566540320 is 23045665.

It can be written as a sum of positive squares in 4 ways, for example, as 373107856 + 193432464 = 19316^2 + 13908^2 .

It is not an unprimeable number, because it can be changed into a prime (566540327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24925 + ... + 41884.

Almost surely, 2^566540320 is an apocalyptic number.

It is an amenable number.

566540320 is an abundant number, since it is smaller than the sum of its proper divisors (797185400).

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

566540320 is a wasteful number, since it uses less digits than its factorization.

566540320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66877 (or 66869 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 566540320 is about 23802.1074697179. The cubic root of 566540320 is about 827.4535200844.

Adding to 566540320 its reverse (23045665), we get a palindrome (589585985).

The spelling of 566540320 in words is "five hundred sixty-six million, five hundred forty thousand, three hundred twenty".