166018063 has 2 divisors, whose sum is σ = 166018064. Its totient is φ = 166018062.

The previous prime is 166018057. The next prime is 166018081. The reversal of 166018063 is 360810661.

It is a weak prime.

It is an emirp because it is prime and its reverse (360810661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166018063 - 2⁵ = 166018031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166118063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83009031 + 83009032.

It is an arithmetic number, because the mean of its divisors is an integer number (83009032).

Almost surely, 2^166018063 is an apocalyptic number.

166018063 is a deficient number, since it is larger than the sum of its proper divisors (1).

166018063 is an equidigital number, since it uses as much as digits as its factorization.

166018063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 166018063 is about 12884.7996880045. The cubic root of 166018063 is about 549.6063993836.

The spelling of 166018063 in words is "one hundred sixty-six million, eighteen thousand, sixty-three".