566655641 has 4 divisors (see below), whose sum is σ = 578712192. Its totient is φ = 554599092.

The previous prime is 566655631. The next prime is 566655643. The reversal of 566655641 is 146556665.

It is a happy number.

566655641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146556665 = 5 ⋅29311333.

It is a cyclic number.

It is not a de Polignac number, because 566655641 - 2²⁶ = 499546777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 566655592 and 566655601.

It is not an unprimeable number, because it can be changed into a prime (566655643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6028205 + ... + 6028298.

It is an arithmetic number, because the mean of its divisors is an integer number (144678048).

Almost surely, 2^566655641 is an apocalyptic number.

It is an amenable number.

566655641 is a deficient number, since it is larger than the sum of its proper divisors (12056551).

566655641 is a wasteful number, since it uses less digits than its factorization.

566655641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12056550.

The product of its digits is 648000, while the sum is 44.

The square root of 566655641 is about 23804.5298420280. The cubic root of 566655641 is about 827.5096598331.

The spelling of 566655641 in words is "five hundred sixty-six million, six hundred fifty-five thousand, six hundred forty-one".