1110110555561 has 16 divisors (see below), whose sum is σ = 1269918474240. Its totient is φ = 950608094400.

The previous prime is 1110110555557. The next prime is 1110110555563. The reversal of 1110110555561 is 1655550110111.

It is a cyclic number.

It is not a de Polignac number, because 1110110555561 - 2² = 1110110555557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1110110555563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92218835 + ... + 92230871.

It is an arithmetic number, because the mean of its divisors is an integer number (79369904640).

Almost surely, 2^{1110110555561} is an apocalyptic number.

It is an amenable number.

1110110555561 is a deficient number, since it is larger than the sum of its proper divisors (159807918679).

1110110555561 is a wasteful number, since it uses less digits than its factorization.

1110110555561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23624.

The product of its (nonzero) digits is 3750, while the sum is 32.

Adding to 1110110555561 its reverse (1655550110111), we get a palindrome (2765660665672).

The spelling of 1110110555561 in words is "one trillion, one hundred ten billion, one hundred ten million, five hundred fifty-five thousand, five hundred sixty-one".