667043330 has 8 divisors (see below), whose sum is σ = 1200678012. Its totient is φ = 266817328.

The previous prime is 667043329. The next prime is 667043353. The reversal of 667043330 is 33340766.

It can be written as a sum of positive squares in 2 ways, for example, as 661055521 + 5987809 = 25711^2 + 2447^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33352157 + ... + 33352176.

Almost surely, 2^667043330 is an apocalyptic number.

667043330 is a deficient number, since it is larger than the sum of its proper divisors (533634682).

667043330 is a wasteful number, since it uses less digits than its factorization.

667043330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66704340.

The product of its (nonzero) digits is 27216, while the sum is 32.

The square root of 667043330 is about 25827.1819988167. The cubic root of 667043330 is about 873.7449566260.

The spelling of 667043330 in words is "six hundred sixty-seven million, forty-three thousand, three hundred thirty".