667374118727 has 2 divisors, whose sum is σ = 667374118728. Its totient is φ = 667374118726.

The previous prime is 667374118721. The next prime is 667374118753. The reversal of 667374118727 is 727811473766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667374118727 - 2⁸ = 667374118471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667374118721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333687059363 + 333687059364.

It is an arithmetic number, because the mean of its divisors is an integer number (333687059364).

Almost surely, 2^667374118727 is an apocalyptic number.

667374118727 is a deficient number, since it is larger than the sum of its proper divisors (1).

667374118727 is an equidigital number, since it uses as much as digits as its factorization.

667374118727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16595712, while the sum is 59.

The spelling of 667374118727 in words is "six hundred sixty-seven billion, three hundred seventy-four million, one hundred eighteen thousand, seven hundred twenty-seven".