2168666119 has 4 divisors (see below), whose sum is σ = 2170185160. Its totient is φ = 2167147080.

The previous prime is 2168666069. The next prime is 2168666141. The reversal of 2168666119 is 9116668612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2168666119 - 2²¹ = 2166568967 is a prime.

It is a super-2 number, since 2×2168666119² = 9406225471397044322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168666189) 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 3 ways as a sum of consecutive naturals, for example, 757377 + ... + 760234.

It is an arithmetic number, because the mean of its divisors is an integer number (542546290).

Almost surely, 2^2168666119 is an apocalyptic number.

2168666119 is a deficient number, since it is larger than the sum of its proper divisors (1519041).

2168666119 is a wasteful number, since it uses less digits than its factorization.

2168666119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519040.

The product of its digits is 186624, while the sum is 46.

The square root of 2168666119 is about 46568.9394231821. The cubic root of 2168666119 is about 1294.3872652725.

The spelling of 2168666119 in words is "two billion, one hundred sixty-eight million, six hundred sixty-six thousand, one hundred nineteen".