166634063 has 2 divisors, whose sum is σ = 166634064. Its totient is φ = 166634062.

The previous prime is 166634023. The next prime is 166634071. The reversal of 166634063 is 360436661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166634063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166634023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83317031 + 83317032.

It is an arithmetic number, because the mean of its divisors is an integer number (83317032).

Almost surely, 2^166634063 is an apocalyptic number.

166634063 is a deficient number, since it is larger than the sum of its proper divisors (1).

166634063 is an equidigital number, since it uses as much as digits as its factorization.

166634063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 166634063 is about 12908.6816910171. The cubic root of 166634063 is about 550.2853208304.

The spelling of 166634063 in words is "one hundred sixty-six million, six hundred thirty-four thousand, sixty-three".