566346646409 has 4 divisors (see below), whose sum is σ = 578396575104. Its totient is φ = 554296717716.

The previous prime is 566346646361. The next prime is 566346646423. The reversal of 566346646409 is 904646643665.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566346646409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (566346646709) 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 3 ways as a sum of consecutive naturals, for example, 6024964277 + ... + 6024964370.

It is an arithmetic number, because the mean of its divisors is an integer number (144599143776).

Almost surely, 2^566346646409 is an apocalyptic number.

It is an amenable number.

566346646409 is a deficient number, since it is larger than the sum of its proper divisors (12049928695).

566346646409 is a wasteful number, since it uses less digits than its factorization.

566346646409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12049928694.

The product of its (nonzero) digits is 67184640, while the sum is 59.

The spelling of 566346646409 in words is "five hundred sixty-six billion, three hundred forty-six million, six hundred forty-six thousand, four hundred nine".