1166441601 has 16 divisors (see below), whose sum is σ = 1684581696. Its totient is φ = 713656896.

The previous prime is 1166441569. The next prime is 1166441603. The reversal of 1166441601 is 1061446611.

It is not a de Polignac number, because 1166441601 - 2⁵ = 1166441569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166441603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79695 + ... + 93188.

It is an arithmetic number, because the mean of its divisors is an integer number (105286356).

Almost surely, 2^1166441601 is an apocalyptic number.

It is an amenable number.

1166441601 is a deficient number, since it is larger than the sum of its proper divisors (518140095).

1166441601 is a wasteful number, since it uses less digits than its factorization.

1166441601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173072.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1166441601 is about 34153.2077702813. The cubic root of 1166441601 is about 1052.6589002233.

The spelling of 1166441601 in words is "one billion, one hundred sixty-six million, four hundred forty-one thousand, six hundred one".