5561061055105 has 8 divisors (see below), whose sum is σ = 6799184082792. Its totient is φ = 4364908299648.

The previous prime is 5561061055093. The next prime is 5561061055153. The reversal of 5561061055105 is 5015501601655.

It can be written as a sum of positive squares in 4 ways, for example, as 1067322470769 + 4493738584336 = 1033113^2 + 2119844^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5561061055105 - 2²¹ = 5561058957953 is a prime.

It is a super-2 number, since 2×5561061055105² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10492567764 + ... + 10492568293.

It is an arithmetic number, because the mean of its divisors is an integer number (849898010349).

Almost surely, 2^{5561061055105} is an apocalyptic number.

It is an amenable number.

5561061055105 is a deficient number, since it is larger than the sum of its proper divisors (1238123027687).

5561061055105 is a wasteful number, since it uses less digits than its factorization.

5561061055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20985136115.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 5561061055105 in words is "five trillion, five hundred sixty-one billion, sixty-one million, fifty-five thousand, one hundred five".