1666110166 has 8 divisors (see below), whose sum is σ = 2856188880. Its totient is φ = 714047208.

The previous prime is 1666110157. The next prime is 1666110167. The reversal of 1666110166 is 6610116661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1666110167) 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 3 ways as a sum of consecutive naturals, for example, 59503921 + ... + 59503948.

It is an arithmetic number, because the mean of its divisors is an integer number (357023610).

Almost surely, 2^1666110166 is an apocalyptic number.

1666110166 is a deficient number, since it is larger than the sum of its proper divisors (1190078714).

1666110166 is a wasteful number, since it uses less digits than its factorization.

1666110166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119007878.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1666110166 is about 40818.0127639747. The cubic root of 1666110166 is about 1185.4991259070.

The spelling of 1666110166 in words is "one billion, six hundred sixty-six million, one hundred ten thousand, one hundred sixty-six".