667210166743 has 2 divisors, whose sum is σ = 667210166744. Its totient is φ = 667210166742.

The previous prime is 667210166677. The next prime is 667210166747. The reversal of 667210166743 is 347661012766.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667210166743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667210166747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333605083371 + 333605083372.

It is an arithmetic number, because the mean of its divisors is an integer number (333605083372).

Almost surely, 2^667210166743 is an apocalyptic number.

667210166743 is a deficient number, since it is larger than the sum of its proper divisors (1).

667210166743 is an equidigital number, since it uses as much as digits as its factorization.

667210166743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 667210166743 in words is "six hundred sixty-seven billion, two hundred ten million, one hundred sixty-six thousand, seven hundred forty-three".