566643101049 has 9 divisors (see below), whose sum is σ = 818487741253. Its totient is φ = 377760561852.

The previous prime is 566643101029. The next prime is 566643101069. The reversal of 566643101049 is 940101346665.

The square root of 566643101049 is 752757.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (566643101029) and next prime (566643101069).

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 566643101049 - 2¹⁹ = 566642576761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 566643100995 and 566643101013.

It is not an unprimeable number, because it can be changed into a prime (566643101029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2132812 + ... + 2383730.

Almost surely, 2^566643101049 is an apocalyptic number.

566643101049 is the 752757-th square number.

566643101049 is the 376379-th centered octagonal number.

It is an amenable number.

566643101049 is a deficient number, since it is larger than the sum of its proper divisors (251844640204).

566643101049 is an frugal number, since it uses more digits than its factorization.

566643101049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501844 (or 250922 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 566643101049 in words is "five hundred sixty-six billion, six hundred forty-three million, one hundred one thousand, forty-nine".