561101061105 has 48 divisors (see below), whose sum is σ = 1102514387520. Its totient is φ = 261695712384.

The previous prime is 561101061077. The next prime is 561101061109. The reversal of 561101061105 is 501160101165.

561101061105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561101061105 - 2¹⁵ = 561101028337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (561101061109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25229599 + ... + 25251828.

It is an arithmetic number, because the mean of its divisors is an integer number (22969049740).

Almost surely, 2^561101061105 is an apocalyptic number.

It is an amenable number.

561101061105 is a deficient number, since it is larger than the sum of its proper divisors (541413326415).

561101061105 is a wasteful number, since it uses less digits than its factorization.

561101061105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50481470 (or 50481467 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 561101061105 in words is "five hundred sixty-one billion, one hundred one million, sixty-one thousand, one hundred five".