667333333333 has 4 divisors (see below), whose sum is σ = 667362726828. Its totient is φ = 667303939840.

The previous prime is 667333333327. The next prime is 667333333339. The reversal of 667333333333 is 333333333766.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (667333333327) and next prime (667333333339).

It can be written as a sum of positive squares in 2 ways, for example, as 86776198084 + 580557135249 = 294578^2 + 761943^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667333333333 is a prime.

It is a Duffinian number.

667333333333 is a modest number, since divided by 3333333 gives 66733 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667333333339) 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, 14662666 + ... + 14708107.

It is an arithmetic number, because the mean of its divisors is an integer number (166840681707).

Almost surely, 2^667333333333 is an apocalyptic number.

It is an amenable number.

667333333333 is a deficient number, since it is larger than the sum of its proper divisors (29393495).

667333333333 is a wasteful number, since it uses less digits than its factorization.

667333333333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29393494.

The product of its digits is 4960116, while the sum is 46.

The spelling of 667333333333 in words is "six hundred sixty-seven billion, three hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-three".