566001661723 has 4 divisors (see below), whose sum is σ = 590610429648. Its totient is φ = 541392893800.

The previous prime is 566001661711. The next prime is 566001661727. The reversal of 566001661723 is 327166100665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 566001661723 - 2²⁹ = 565464790811 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 566001661723.

It is not an unprimeable number, because it can be changed into a prime (566001661727) 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, 12304383928 + ... + 12304383973.

It is an arithmetic number, because the mean of its divisors is an integer number (147652607412).

Almost surely, 2^566001661723 is an apocalyptic number.

566001661723 is a deficient number, since it is larger than the sum of its proper divisors (24608767925).

566001661723 is a wasteful number, since it uses less digits than its factorization.

566001661723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24608767924.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 566001661723 in words is "five hundred sixty-six billion, one million, six hundred sixty-one thousand, seven hundred twenty-three".