561601600011 has 48 divisors (see below), whose sum is σ = 843251136000. Its totient is φ = 359925280704.

The previous prime is 561601599989. The next prime is 561601600067. The reversal of 561601600011 is 110006106165.

561601600011 is a `hidden beast` number, since 56 + 1 + 6 + 0 + 1 + 600 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 561601600011 - 2¹⁸ = 561601337867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561601600711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9862620 + ... + 9919398.

It is an arithmetic number, because the mean of its divisors is an integer number (17567732000).

Almost surely, 2^561601600011 is an apocalyptic number.

561601600011 is a deficient number, since it is larger than the sum of its proper divisors (281649535989).

561601600011 is a wasteful number, since it uses less digits than its factorization.

561601600011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57248 (or 57245 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 561601600011 its reverse (110006106165), we get a palindrome (671607706176).

The spelling of 561601600011 in words is "five hundred sixty-one billion, six hundred one million, six hundred thousand, eleven".