1669168214 has 16 divisors (see below), whose sum is σ = 2900630688. Its totient is φ = 705557952.

The previous prime is 1669168187. The next prime is 1669168217. The reversal of 1669168214 is 4128619661.

It is a super-2 number, since 2×1669168214² = 5572245053255899592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669168217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815597 + ... + 817640.

It is an arithmetic number, because the mean of its divisors is an integer number (181289418).

Almost surely, 2^1669168214 is an apocalyptic number.

1669168214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1669168214 is a deficient number, since it is larger than the sum of its proper divisors (1231462474).

1669168214 is a wasteful number, since it uses less digits than its factorization.

1669168214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633319.

The product of its digits is 124416, while the sum is 44.

The square root of 1669168214 is about 40855.4551314754. The cubic root of 1669168214 is about 1186.2239874332.

The spelling of 1669168214 in words is "one billion, six hundred sixty-nine million, one hundred sixty-eight thousand, two hundred fourteen".