565543680 has 144 divisors (see below), whose sum is σ = 1945315680. Its totient is φ = 139198464.

The previous prime is 565543669. The next prime is 565543687. The reversal of 565543680 is 86345565.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (565543687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44256 + ... + 55584.

Almost surely, 2^565543680 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 565543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972657840).

565543680 is an abundant number, since it is smaller than the sum of its proper divisors (1379772000).

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

565543680 is a wasteful number, since it uses less digits than its factorization.

565543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11366 (or 11352 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 565543680 is about 23781.1622928737. The cubic root of 565543680 is about 826.9680251720.

The spelling of 565543680 in words is "five hundred sixty-five million, five hundred forty-three thousand, six hundred eighty".