110666666561 has 8 divisors (see below), whose sum is σ = 120891984384. Its totient is φ = 100468800720.

The previous prime is 110666666557. The next prime is 110666666563. The reversal of 110666666561 is 165666666011.

It is a happy number.

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 110666666561 - 2² = 110666666557 is a prime.

It is a super-3 number, since 3×110666666561³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110666666563) by changing a digit.

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, 6854561 + ... + 6870686.

It is an arithmetic number, because the mean of its divisors is an integer number (15111498048).

Almost surely, 2^110666666561 is an apocalyptic number.

110666666561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

110666666561 is a deficient number, since it is larger than the sum of its proper divisors (10225317823).

110666666561 is a wasteful number, since it uses less digits than its factorization.

110666666561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725991.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 110666666561 in words is "one hundred ten billion, six hundred sixty-six million, six hundred sixty-six thousand, five hundred sixty-one".