1668469116 has 48 divisors (see below), whose sum is σ = 4144089600. Its totient is φ = 520958592.

The previous prime is 1668469057. The next prime is 1668469147. The reversal of 1668469116 is 6119648661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20820 + ... + 61403.

It is an arithmetic number, because the mean of its divisors is an integer number (86335200).

Almost surely, 2^1668469116 is an apocalyptic number.

It is an amenable number.

1668469116 is an abundant number, since it is smaller than the sum of its proper divisors (2475620484).

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

1668469116 is a wasteful number, since it uses less digits than its factorization.

1668469116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82338 (or 82336 counting only the distinct ones).

The product of its digits is 373248, while the sum is 48.

The square root of 1668469116 is about 40846.8984869109. The cubic root of 1668469116 is about 1186.0583555106.

The spelling of 1668469116 in words is "one billion, six hundred sixty-eight million, four hundred sixty-nine thousand, one hundred sixteen".