565330320 has 160 divisors (see below), whose sum is σ = 1972492800. Its totient is φ = 148801536.

The previous prime is 565330301. The next prime is 565330333. The reversal of 565330320 is 23033565.

565330320 is a `hidden beast` number, since 5 + 6 + 5 + 330 + 320 = 666.

It is a super-2 number, since 2×565330320² = 639196741422604800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168984 + ... + 172296.

It is an arithmetic number, because the mean of its divisors is an integer number (12328080).

Almost surely, 2^565330320 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 565330320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986246400).

565330320 is an abundant number, since it is smaller than the sum of its proper divisors (1407162480).

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

565330320 is a wasteful number, since it uses less digits than its factorization.

565330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414 (or 3402 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 565330320 is about 23776.6759661648. The cubic root of 565330320 is about 826.8640166475.

Adding to 565330320 its reverse (23033565), we get a palindrome (588363885).

The spelling of 565330320 in words is "five hundred sixty-five million, three hundred thirty thousand, three hundred twenty".