166508463 has 12 divisors (see below), whose sum is σ = 244029464. Its totient is φ = 100914000.

The previous prime is 166508453. The next prime is 166508479. The reversal of 166508463 is 364805661.

It is not a de Polignac number, because 166508463 - 2¹⁷ = 166377391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166508413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228988 + ... + 229713.

Almost surely, 2^166508463 is an apocalyptic number.

166508463 is a deficient number, since it is larger than the sum of its proper divisors (77521001).

166508463 is a wasteful number, since it uses less digits than its factorization.

166508463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458726 (or 458715 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 166508463 is about 12903.8158309858. The cubic root of 166508463 is about 550.1470273594.

The spelling of 166508463 in words is "one hundred sixty-six million, five hundred eight thousand, four hundred sixty-three".