16168868 has 6 divisors (see below), whose sum is σ = 28295526. Its totient is φ = 8084432.

The previous prime is 16168861. The next prime is 16168871. The reversal of 16168868 is 86886161.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 550564 = 3952^2 + 742^2 .

It is a super-2 number, since 2×16168868² = 522864584802848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16168861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021105 + ... + 2021112.

It is an arithmetic number, because the mean of its divisors is an integer number (4715921).

Almost surely, 2^16168868 is an apocalyptic number.

It is an amenable number.

16168868 is a deficient number, since it is larger than the sum of its proper divisors (12126658).

16168868 is a wasteful number, since it uses less digits than its factorization.

16168868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042221 (or 4042219 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 16168868 is about 4021.0530958942. The cubic root of 16168868 is about 252.8676108016.

The spelling of 16168868 in words is "sixteen million, one hundred sixty-eight thousand, eight hundred sixty-eight".