660667334 has 8 divisors (see below), whose sum is σ = 991259640. Its totient is φ = 330247456.

The previous prime is 660667333. The next prime is 660667367. The reversal of 660667334 is 433766066.

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

It is a junction number, because it is equal to n+sod(n) for n = 660667291 and 660667300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660667333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33059 + ... + 49134.

It is an arithmetic number, because the mean of its divisors is an integer number (123907455).

Almost surely, 2^660667334 is an apocalyptic number.

660667334 is a deficient number, since it is larger than the sum of its proper divisors (330592306).

660667334 is a wasteful number, since it uses less digits than its factorization.

660667334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86214.

The product of its (nonzero) digits is 326592, while the sum is 41.

The square root of 660667334 is about 25703.4498462755. The cubic root of 660667334 is about 870.9521148161.

The spelling of 660667334 in words is "six hundred sixty million, six hundred sixty-seven thousand, three hundred thirty-four".