668334146 has 8 divisors (see below), whose sum is σ = 1034840064. Its totient is φ = 323387460.

The previous prime is 668334113. The next prime is 668334151. The reversal of 668334146 is 641433866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5389730 + ... + 5389853.

It is an arithmetic number, because the mean of its divisors is an integer number (129355008).

Almost surely, 2^668334146 is an apocalyptic number.

668334146 is a deficient number, since it is larger than the sum of its proper divisors (366505918).

668334146 is a wasteful number, since it uses less digits than its factorization.

668334146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10779616.

The product of its digits is 248832, while the sum is 41.

The square root of 668334146 is about 25852.1594069045. The cubic root of 668334146 is about 874.3081970193.

The spelling of 668334146 in words is "six hundred sixty-eight million, three hundred thirty-four thousand, one hundred forty-six".