660667367 has 2 divisors, whose sum is σ = 660667368. Its totient is φ = 660667366.

The previous prime is 660667333. The next prime is 660667439. The reversal of 660667367 is 763766066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 660667367 - 2⁶ = 660667303 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (669667367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330333683 + 330333684.

It is an arithmetic number, because the mean of its divisors is an integer number (330333684).

Almost surely, 2^660667367 is an apocalyptic number.

660667367 is a deficient number, since it is larger than the sum of its proper divisors (1).

660667367 is an equidigital number, since it uses as much as digits as its factorization.

660667367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 47.

The square root of 660667367 is about 25703.4504882127. The cubic root of 660667367 is about 870.9521293173.

The spelling of 660667367 in words is "six hundred sixty million, six hundred sixty-seven thousand, three hundred sixty-seven".