666667334 has 8 divisors (see below), whose sum is σ = 1000392120. Its totient is φ = 333203296.

The previous prime is 666667303. The next prime is 666667349. The reversal of 666667334 is 433766666.

It is a happy number.

666667334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent 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, 58664 + ... + 69099.

It is an arithmetic number, because the mean of its divisors is an integer number (125049015).

Almost surely, 2^666667334 is an apocalyptic number.

666667334 is a deficient number, since it is larger than the sum of its proper divisors (333724786).

666667334 is a wasteful number, since it uses less digits than its factorization.

666667334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130374.

The product of its digits is 1959552, while the sum is 47.

The square root of 666667334 is about 25819.9018975673. The cubic root of 666667334 is about 873.5807562209.

It can be divided in two parts, 666 and 667334, that multiplied together give a palindrome (444444444).

The spelling of 666667334 in words is "six hundred sixty-six million, six hundred sixty-seven thousand, three hundred thirty-four".