668349110 has 64 divisors (see below), whose sum is σ = 1421328384. Its totient is φ = 223075200.

The previous prime is 668349089. The next prime is 668349137. The reversal of 668349110 is 11943866.

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 31 ways as a sum of consecutive naturals, for example, 271907 + ... + 274353.

It is an arithmetic number, because the mean of its divisors is an integer number (22208256).

Almost surely, 2^668349110 is an apocalyptic number.

668349110 is an abundant number, since it is smaller than the sum of its proper divisors (752979274).

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

668349110 is a wasteful number, since it uses less digits than its factorization.

668349110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 668349110 is about 25852.4488201795. The cubic root of 668349110 is about 874.3147222235.

The spelling of 668349110 in words is "six hundred sixty-eight million, three hundred forty-nine thousand, one hundred ten".