668774334 has 16 divisors (see below), whose sum is σ = 1373699088. Its totient is φ = 216899712.

The previous prime is 668774317. The next prime is 668774363. The reversal of 668774334 is 433477866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506027 + ... + 1506470.

It is an arithmetic number, because the mean of its divisors is an integer number (85856193).

Almost surely, 2^668774334 is an apocalyptic number.

668774334 is an abundant number, since it is smaller than the sum of its proper divisors (704924754).

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

668774334 is a wasteful number, since it uses less digits than its factorization.

668774334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012539.

The product of its digits is 2032128, while the sum is 48.

The square root of 668774334 is about 25860.6715690061. The cubic root of 668774334 is about 874.5001047728.

The spelling of 668774334 in words is "six hundred sixty-eight million, seven hundred seventy-four thousand, three hundred thirty-four".