110666661 has 8 divisors (see below), whose sum is σ = 168634944. Its totient is φ = 63238080.

The previous prime is 110666641. The next prime is 110666671. The reversal of 110666661 is 166666011.

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

It is not a de Polignac number, because 110666661 - 2⁵ = 110666629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110666641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2634900 + ... + 2634941.

It is an arithmetic number, because the mean of its divisors is an integer number (21079368).

Almost surely, 2^110666661 is an apocalyptic number.

It is an amenable number.

110666661 is a deficient number, since it is larger than the sum of its proper divisors (57968283).

110666661 is an equidigital number, since it uses as much as digits as its factorization.

110666661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269851.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 110666661 is about 10519.8222893735. The cubic root of 110666661 is about 480.1079921947.

The spelling of 110666661 in words is "one hundred ten million, six hundred sixty-six thousand, six hundred sixty-one".