566353563681 has 16 divisors (see below), whose sum is σ = 811794585600. Its totient is φ = 350086411728.

The previous prime is 566353563679. The next prime is 566353563683. The reversal of 566353563681 is 186365353665.

It is an interprime number because it is at equal distance from previous prime (566353563679) and next prime (566353563683).

It is not a de Polignac number, because 566353563681 - 2¹ = 566353563679 is a prime.

It is a super-2 number, since 2×566353563681² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (566353563683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105699741 + ... + 105705098.

It is an arithmetic number, because the mean of its divisors is an integer number (50737161600).

Almost surely, 2^566353563681 is an apocalyptic number.

It is an amenable number.

566353563681 is a deficient number, since it is larger than the sum of its proper divisors (245441021919).

566353563681 is a wasteful number, since it uses less digits than its factorization.

566353563681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211404908.

The product of its digits is 34992000, while the sum is 57.

The spelling of 566353563681 in words is "five hundred sixty-six billion, three hundred fifty-three million, five hundred sixty-three thousand, six hundred eighty-one".