566540663 has 8 divisors (see below), whose sum is σ = 618479568. Its totient is φ = 515795904.

The previous prime is 566540659. The next prime is 566540687. The reversal of 566540663 is 366045665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 566540663 - 2² = 566540659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566540663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566540063) 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, 297545 + ... + 299442.

It is an arithmetic number, because the mean of its divisors is an integer number (77309946).

Almost surely, 2^566540663 is an apocalyptic number.

566540663 is a deficient number, since it is larger than the sum of its proper divisors (51938905).

566540663 is a wasteful number, since it uses less digits than its factorization.

566540663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597073.

The product of its (nonzero) digits is 388800, while the sum is 41.

The square root of 566540663 is about 23802.1146749611. The cubic root of 566540663 is about 827.4536870725.

The spelling of 566540663 in words is "five hundred sixty-six million, five hundred forty thousand, six hundred sixty-three".