561564563001 has 8 divisors (see below), whose sum is σ = 806349116160. Its totient is φ = 345578192592.

The previous prime is 561564562973. The next prime is 561564563059. The reversal of 561564563001 is 100365465165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561564563001 - 2¹⁰ = 561564561977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561564563201) 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 7 ways as a sum of consecutive naturals, for example, 7199545641 + ... + 7199545718.

It is an arithmetic number, because the mean of its divisors is an integer number (100793639520).

Almost surely, 2^561564563001 is an apocalyptic number.

It is an amenable number.

561564563001 is a deficient number, since it is larger than the sum of its proper divisors (244784553159).

561564563001 is a wasteful number, since it uses less digits than its factorization.

561564563001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14399091375.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 561564563001 in words is "five hundred sixty-one billion, five hundred sixty-four million, five hundred sixty-three thousand, one".