668000107 has 4 divisors (see below), whose sum is σ = 668068560. Its totient is φ = 667931656.

The previous prime is 668000101. The next prime is 668000111. The reversal of 668000107 is 701000866.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 701000866 = 2 ⋅350500433.

It is a cyclic number.

It is not a de Polignac number, because 668000107 - 2⁷ = 667999979 is a prime.

It is a super-3 number, since 3×668000107³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (668000101) 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 3 ways as a sum of consecutive naturals, for example, 16543 + ... + 40120.

It is an arithmetic number, because the mean of its divisors is an integer number (167017140).

Almost surely, 2^668000107 is an apocalyptic number.

668000107 is a deficient number, since it is larger than the sum of its proper divisors (68453).

668000107 is a wasteful number, since it uses less digits than its factorization.

668000107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68452.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 668000107 is about 25845.6980366172. The cubic root of 668000107 is about 874.1625105600.

The spelling of 668000107 in words is "six hundred sixty-eight million, one hundred seven", and thus it is an aban number.