163328673 has 8 divisors (see below), whose sum is σ = 230581728. Its totient is φ = 102480704.

The previous prime is 163328651. The next prime is 163328687. The reversal of 163328673 is 376823361.

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 163328673 - 2¹³ = 163320481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163328603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601211 + ... + 1601312.

It is an arithmetic number, because the mean of its divisors is an integer number (28822716).

Almost surely, 2^163328673 is an apocalyptic number.

It is an amenable number.

163328673 is a deficient number, since it is larger than the sum of its proper divisors (67253055).

163328673 is a wasteful number, since it uses less digits than its factorization.

163328673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202543.

The product of its digits is 108864, while the sum is 39.

The square root of 163328673 is about 12780.0106807467. The cubic root of 163328673 is about 546.6224669714.

The spelling of 163328673 in words is "one hundred sixty-three million, three hundred twenty-eight thousand, six hundred seventy-three".