166100664401267 has 2 divisors, whose sum is σ = 166100664401268. Its totient is φ = 166100664401266.

The previous prime is 166100664401251. The next prime is 166100664401351. The reversal of 166100664401267 is 762104466001661.

166100664401267 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 166100664401267 - 2⁴ = 166100664401251 is a prime.

It is not a weakly prime, because it can be changed into another prime (166100664401227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83050332200633 + 83050332200634.

It is an arithmetic number, because the mean of its divisors is an integer number (83050332200634).

Almost surely, 2^{166100664401267} is an apocalyptic number.

166100664401267 is a deficient number, since it is larger than the sum of its proper divisors (1).

166100664401267 is an equidigital number, since it uses as much as digits as its factorization.

166100664401267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 166100664401267 in words is "one hundred sixty-six trillion, one hundred billion, six hundred sixty-four million, four hundred one thousand, two hundred sixty-seven".