163855827 has 6 divisors (see below), whose sum is σ = 236680652. Its totient is φ = 109237212.

The previous prime is 163855819. The next prime is 163855831. The reversal of 163855827 is 728558361.

163855827 is a `hidden beast` number, since 1 + 63 + 8 + 5 + 582 + 7 = 666.

It is not a de Polignac number, because 163855827 - 2³ = 163855819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163855837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9103093 + ... + 9103110.

Almost surely, 2^163855827 is an apocalyptic number.

163855827 is a deficient number, since it is larger than the sum of its proper divisors (72824825).

163855827 is a wasteful number, since it uses less digits than its factorization.

163855827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18206209 (or 18206206 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 163855827 is about 12800.6182272576. The cubic root of 163855827 is about 547.2099220237.

The spelling of 163855827 in words is "one hundred sixty-three million, eight hundred fifty-five thousand, eight hundred twenty-seven".