163966089 has 16 divisors (see below), whose sum is σ = 250048512. Its totient is φ = 93621648.

The previous prime is 163966079. The next prime is 163966097. The reversal of 163966089 is 980669361.

163966089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163966089 - 2⁷ = 163965961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (163966039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36142 + ... + 40424.

It is an arithmetic number, because the mean of its divisors is an integer number (15628032).

Almost surely, 2^163966089 is an apocalyptic number.

It is an amenable number.

163966089 is a deficient number, since it is larger than the sum of its proper divisors (86082423).

163966089 is a wasteful number, since it uses less digits than its factorization.

163966089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 163966089 is about 12804.9244043063. The cubic root of 163966089 is about 547.3326374879.

The spelling of 163966089 in words is "one hundred sixty-three million, nine hundred sixty-six thousand, eighty-nine".