561105561106 has 16 divisors (see below), whose sum is σ = 842313942720. Its totient is φ = 280334306160.

The previous prime is 561105561101. The next prime is 561105561113. The reversal of 561105561106 is 601165501165.

It is not an unprimeable number, because it can be changed into a prime (561105561101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29774835 + ... + 29793673.

It is an arithmetic number, because the mean of its divisors is an integer number (52644621420).

Almost surely, 2^561105561106 is an apocalyptic number.

561105561106 is a deficient number, since it is larger than the sum of its proper divisors (281208381614).

561105561106 is a wasteful number, since it uses less digits than its factorization.

561105561106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29649.

The product of its (nonzero) digits is 27000, while the sum is 37.

It can be divided in two parts, 561105 and 561106, that added together give a palindrome (1122211).

The spelling of 561105561106 in words is "five hundred sixty-one billion, one hundred five million, five hundred sixty-one thousand, one hundred six".