668346270 has 32 divisors (see below), whose sum is σ = 1605307680. Its totient is φ = 178083840.

The previous prime is 668346227. The next prime is 668346293. The reversal of 668346270 is 72643866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32646 + ... + 49014.

It is an arithmetic number, because the mean of its divisors is an integer number (50165865).

Almost surely, 2^668346270 is an apocalyptic number.

668346270 is an abundant number, since it is smaller than the sum of its proper divisors (936961410).

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

668346270 is a wasteful number, since it uses less digits than its factorization.

668346270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17740.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 668346270 is about 25852.3938930228. The cubic root of 668346270 is about 874.3134838201.

The spelling of 668346270 in words is "six hundred sixty-eight million, three hundred forty-six thousand, two hundred seventy".