561116105115 has 32 divisors (see below), whose sum is σ = 946015403520. Its totient is φ = 283217969664.

The previous prime is 561116105071. The next prime is 561116105117. The reversal of 561116105115 is 511501611165.

It is not a de Polignac number, because 561116105115 - 2⁷ = 561116104987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561116105117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 742414 + ... + 1293603.

It is an arithmetic number, because the mean of its divisors is an integer number (29562981360).

Almost surely, 2^561116105115 is an apocalyptic number.

561116105115 is a deficient number, since it is larger than the sum of its proper divisors (384899298405).

561116105115 is a wasteful number, since it uses less digits than its factorization.

561116105115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037011.

The product of its (nonzero) digits is 4500, while the sum is 33.

The spelling of 561116105115 in words is "five hundred sixty-one billion, one hundred sixteen million, one hundred five thousand, one hundred fifteen".