166534063 has 2 divisors, whose sum is σ = 166534064. Its totient is φ = 166534062.

The previous prime is 166534021. The next prime is 166534073. The reversal of 166534063 is 360435661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166534063 - 2⁹ = 166533551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166534073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83267031 + 83267032.

It is an arithmetic number, because the mean of its divisors is an integer number (83267032).

Almost surely, 2^166534063 is an apocalyptic number.

166534063 is a deficient number, since it is larger than the sum of its proper divisors (1).

166534063 is an equidigital number, since it uses as much as digits as its factorization.

166534063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 166534063 is about 12904.8077475025. The cubic root of 166534063 is about 550.1752202051.

The spelling of 166534063 in words is "one hundred sixty-six million, five hundred thirty-four thousand, sixty-three".