1669434168 has 16 divisors (see below), whose sum is σ = 4173585480. Its totient is φ = 556478048.

The previous prime is 1669434167. The next prime is 1669434181. The reversal of 1669434168 is 8614349661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669434161) 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 3 ways as a sum of consecutive naturals, for example, 34779855 + ... + 34779902.

Almost surely, 2^1669434168 is an apocalyptic number.

It is an amenable number.

1669434168 is an abundant number, since it is smaller than the sum of its proper divisors (2504151312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669434168 is a wasteful number, since it uses less digits than its factorization.

1669434168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69559766 (or 69559762 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 1669434168 is about 40858.7098181037. The cubic root of 1669434168 is about 1186.2869857293.

The spelling of 1669434168 in words is "one billion, six hundred sixty-nine million, four hundred thirty-four thousand, one hundred sixty-eight".