667747630155167 has 2 divisors, whose sum is σ = 667747630155168. Its totient is φ = 667747630155166.

The previous prime is 667747630155163. The next prime is 667747630155217. The reversal of 667747630155167 is 761551036747766.

667747630155167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667747630155167 - 2² = 667747630155163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667747630155167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667747630155161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333873815077583 + 333873815077584.

It is an arithmetic number, because the mean of its divisors is an integer number (333873815077584).

Almost surely, 2^{667747630155167} is an apocalyptic number.

667747630155167 is a deficient number, since it is larger than the sum of its proper divisors (1).

667747630155167 is an equidigital number, since it uses as much as digits as its factorization.

667747630155167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933508800, while the sum is 71.

The spelling of 667747630155167 in words is "six hundred sixty-seven trillion, seven hundred forty-seven billion, six hundred thirty million, one hundred fifty-five thousand, one hundred sixty-seven".