166463 has 8 divisors (see below), whose sum is σ = 186960. Its totient is φ = 146880.

The previous prime is 166457. The next prime is 166471. The reversal of 166463 is 364661.

It is a Cunningham number, because it is equal to 408²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166463 - 2⁶ = 166399 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 (166403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203 + ... + 611.

It is an arithmetic number, because the mean of its divisors is an integer number (23370).

2¹⁶⁶⁴⁶³ is an apocalyptic number.

166463 is a deficient number, since it is larger than the sum of its proper divisors (20497).

166463 is a wasteful number, since it uses less digits than its factorization.

166463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its digits is 2592, while the sum is 26.

The square root of 166463 is about 407.9987745080. The cubic root of 166463 is about 55.0096952605.

The spelling of 166463 in words is "one hundred sixty-six thousand, four hundred sixty-three".