1166996611 has 16 divisors (see below), whose sum is σ = 1291530240. Its totient is φ = 1045586880.

The previous prime is 1166996591. The next prime is 1166996647.

It is a happy number.

1166996611 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1166996611 - 2⁷ = 1166996483 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1166996681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743950 + ... + 745516.

It is an arithmetic number, because the mean of its divisors is an integer number (80720640).

Almost surely, 2^1166996611 is an apocalyptic number.

1166996611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1166996611 is a deficient number, since it is larger than the sum of its proper divisors (124533629).

1166996611 is a wasteful number, since it uses less digits than its factorization.

1166996611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514.

The product of its digits is 104976, while the sum is 46.

The square root of 1166996611 is about 34161.3321022468. The cubic root of 1166996611 is about 1052.8258305915.

The spelling of 1166996611 in words is "one billion, one hundred sixty-six million, nine hundred ninety-six thousand, six hundred eleven".