1166834386611 has 32 divisors (see below), whose sum is σ = 1775494003200. Its totient is φ = 756809969760.

The previous prime is 1166834386607. The next prime is 1166834386631.

It is a happy number.

1166834386611 is a `hidden beast` number, since 1 + 1 + 66 + 83 + 438 + 66 + 11 = 666.

1166834386611 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1166834386611 - 2² = 1166834386607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166834386631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16927626 + ... + 16996416.

It is an arithmetic number, because the mean of its divisors is an integer number (55484187600).

Almost surely, 2^{1166834386611} is an apocalyptic number.

1166834386611 is a deficient number, since it is larger than the sum of its proper divisors (608659616589).

1166834386611 is a wasteful number, since it uses less digits than its factorization.

1166834386611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85816 (or 85810 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 1166834386611 in words is "one trillion, one hundred sixty-six billion, eight hundred thirty-four million, three hundred eighty-six thousand, six hundred eleven".