2016666161 has 8 divisors (see below), whose sum is σ = 2054035200. Its totient is φ = 1979436240.

The previous prime is 2016666131. The next prime is 2016666163. The reversal of 2016666161 is 1616666102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2016666161 - 2¹⁴ = 2016649777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2016666163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5291 + ... + 63728.

It is an arithmetic number, because the mean of its divisors is an integer number (256754400).

Almost surely, 2^2016666161 is an apocalyptic number.

It is an amenable number.

2016666161 is a deficient number, since it is larger than the sum of its proper divisors (37369039).

2016666161 is an equidigital number, since it uses as much as digits as its factorization.

2016666161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69559.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2016666161 is about 44907.3063209095. The cubic root of 2016666161 is about 1263.4110481374.

The spelling of 2016666161 in words is "two billion, sixteen million, six hundred sixty-six thousand, one hundred sixty-one".