1066166607167 has 2 divisors, whose sum is σ = 1066166607168. Its totient is φ = 1066166607166.

The previous prime is 1066166607101. The next prime is 1066166607203. The reversal of 1066166607167 is 7617066616601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066166607167 - 2¹² = 1066166603071 is a prime.

It is a super-2 number, since 2×1066166607167² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066166607967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533083303583 + 533083303584.

It is an arithmetic number, because the mean of its divisors is an integer number (533083303584).

Almost surely, 2^{1066166607167} is an apocalyptic number.

1066166607167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066166607167 is an equidigital number, since it uses as much as digits as its factorization.

1066166607167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 1066166607167 in words is "one trillion, sixty-six billion, one hundred sixty-six million, six hundred seven thousand, one hundred sixty-seven".