1166217166 has 8 divisors (see below), whose sum is σ = 1749977280. Its totient is φ = 582891408.

The previous prime is 1166217149. The next prime is 1166217181. The reversal of 1166217166 is 6617126611.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101791 + ... + 112666.

It is an arithmetic number, because the mean of its divisors is an integer number (218747160).

Almost surely, 2^1166217166 is an apocalyptic number.

1166217166 is a deficient number, since it is larger than the sum of its proper divisors (583760114).

1166217166 is a wasteful number, since it uses less digits than its factorization.

1166217166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217178.

The product of its digits is 18144, while the sum is 37.

The square root of 1166217166 is about 34149.9219032782. The cubic root of 1166217166 is about 1052.5913818683.

The spelling of 1166217166 in words is "one billion, one hundred sixty-six million, two hundred seventeen thousand, one hundred sixty-six".