668116 has 24 divisors (see below), whose sum is σ = 1260000. Its totient is φ = 309024.

The previous prime is 668111. The next prime is 668141. The reversal of 668116 is 611866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4410 + ... + 4558.

It is an arithmetic number, because the mean of its divisors is an integer number (52500).

2⁶⁶⁸¹¹⁶ is an apocalyptic number.

It is an amenable number.

668116 is a deficient number, since it is larger than the sum of its proper divisors (591884).

668116 is a wasteful number, since it uses less digits than its factorization.

668116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 229 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 668116 is about 817.3836308613. The cubic root of 668116 is about 87.4213061179.

It can be divided in two parts, 668 and 116, that added together give a square (784 = 28²).

The spelling of 668116 in words is "six hundred sixty-eight thousand, one hundred sixteen".