1166041401 has 16 divisors (see below), whose sum is σ = 1803346944. Its totient is φ = 656363664.

The previous prime is 1166041397. The next prime is 1166041403. The reversal of 1166041401 is 1041406611.

It is not a de Polignac number, because 1166041401 - 2² = 1166041397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1166041403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412965 + ... + 415778.

It is an arithmetic number, because the mean of its divisors is an integer number (112709184).

Almost surely, 2^1166041401 is an apocalyptic number.

It is an amenable number.

1166041401 is a deficient number, since it is larger than the sum of its proper divisors (637305543).

1166041401 is an equidigital number, since it uses as much as digits as its factorization.

1166041401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828820.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1166041401 is about 34147.3483743614. The cubic root of 1166041401 is about 1052.5384992020.

The spelling of 1166041401 in words is "one billion, one hundred sixty-six million, forty-one thousand, four hundred one".