163856484 has 36 divisors (see below), whose sum is σ = 451847760. Its totient is φ = 49653360.

The previous prime is 163856479. The next prime is 163856501. The reversal of 163856484 is 484658361.

163856484 is a `hidden beast` number, since 1 + 6 + 3 + 8 + 564 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206494 + ... + 207285.

Almost surely, 2^163856484 is an apocalyptic number.

It is an amenable number.

163856484 is an abundant number, since it is smaller than the sum of its proper divisors (287991276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163856484 is a wasteful number, since it uses less digits than its factorization.

163856484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413800 (or 413795 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 163856484 is about 12800.6438900549. The cubic root of 163856484 is about 547.2106533911.

The spelling of 163856484 in words is "one hundred sixty-three million, eight hundred fifty-six thousand, four hundred eighty-four".