110660011561 has 8 divisors (see below), whose sum is σ = 120723120000. Its totient is φ = 100597421040.

The previous prime is 110660011547. The next prime is 110660011571. The reversal of 110660011561 is 165110066011.

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 110660011561 - 2⁵ = 110660011529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110660011571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417915 + ... + 629263.

It is an arithmetic number, because the mean of its divisors is an integer number (15090390000).

Almost surely, 2^110660011561 is an apocalyptic number.

110660011561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110660011561 is a deficient number, since it is larger than the sum of its proper divisors (10063108439).

110660011561 is a wasteful number, since it uses less digits than its factorization.

110660011561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258959.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 110660011561 its reverse (165110066011), we get a palindrome (275770077572).

The spelling of 110660011561 in words is "one hundred ten billion, six hundred sixty million, eleven thousand, five hundred sixty-one".