1166311206 has 12 divisors (see below), whose sum is σ = 2527007652. Its totient is φ = 388770396.

The previous prime is 1166311199. The next prime is 1166311247. The reversal of 1166311206 is 6021136611.

1166311206 is a `hidden beast` number, since 1 + 1 + 6 + 631 + 1 + 20 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1166311206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32397516 + ... + 32397551.

It is an arithmetic number, because the mean of its divisors is an integer number (210583971).

Almost surely, 2^1166311206 is an apocalyptic number.

1166311206 is an abundant number, since it is smaller than the sum of its proper divisors (1360696446).

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

1166311206 is a wasteful number, since it uses less digits than its factorization.

1166311206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64795075 (or 64795072 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1166311206 is about 34151.2987454357. The cubic root of 1166311206 is about 1052.6196736353.

Adding to 1166311206 its reverse (6021136611), we get a palindrome (7187447817).

The spelling of 1166311206 in words is "one billion, one hundred sixty-six million, three hundred eleven thousand, two hundred six".