1166276166 has 48 divisors (see below), whose sum is σ = 2568442800. Its totient is φ = 352788480.

The previous prime is 1166276147. The next prime is 1166276197. The reversal of 1166276166 is 6616726611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557250 + ... + 559338.

It is an arithmetic number, because the mean of its divisors is an integer number (53509225).

Almost surely, 2^1166276166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166276166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284221400).

1166276166 is an abundant number, since it is smaller than the sum of its proper divisors (1402166634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1166276166 is a wasteful number, since it uses less digits than its factorization.

1166276166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 2874 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 1166276166 is about 34150.7857303459. The cubic root of 1166276166 is about 1052.6091320912.

The spelling of 1166276166 in words is "one billion, one hundred sixty-six million, two hundred seventy-six thousand, one hundred sixty-six".