667586685743 has 2 divisors, whose sum is σ = 667586685744. Its totient is φ = 667586685742.

The previous prime is 667586685683. The next prime is 667586685781. The reversal of 667586685743 is 347586685766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667586685743 - 2¹² = 667586681647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667586685793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333793342871 + 333793342872.

It is an arithmetic number, because the mean of its divisors is an integer number (333793342872).

Almost surely, 2^667586685743 is an apocalyptic number.

667586685743 is a deficient number, since it is larger than the sum of its proper divisors (1).

667586685743 is an equidigital number, since it uses as much as digits as its factorization.

667586685743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1219276800, while the sum is 71.

The spelling of 667586685743 in words is "six hundred sixty-seven billion, five hundred eighty-six million, six hundred eighty-five thousand, seven hundred forty-three".