166242463 has 2 divisors, whose sum is σ = 166242464. Its totient is φ = 166242462.

The previous prime is 166242451. The next prime is 166242481. The reversal of 166242463 is 364242661.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166242463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166242403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83121231 + 83121232.

It is an arithmetic number, because the mean of its divisors is an integer number (83121232).

Almost surely, 2^166242463 is an apocalyptic number.

166242463 is a deficient number, since it is larger than the sum of its proper divisors (1).

166242463 is an equidigital number, since it uses as much as digits as its factorization.

166242463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

The square root of 166242463 is about 12893.5046825912. The cubic root of 166242463 is about 549.8539149209.

The spelling of 166242463 in words is "one hundred sixty-six million, two hundred forty-two thousand, four hundred sixty-three".