163966532 has 18 divisors (see below), whose sum is σ = 289565262. Its totient is φ = 81236064.

The previous prime is 163966511. The next prime is 163966559. The reversal of 163966532 is 235669361.

163966532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 144817156 + 19149376 = 12034^2 + 4376^2 .

It is a super-2 number, since 2×163966532² = 53770047232214048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163966532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 299483 + ... + 300029.

It is an arithmetic number, because the mean of its divisors is an integer number (16086959).

Almost surely, 2^163966532 is an apocalyptic number.

It is an amenable number.

163966532 is a deficient number, since it is larger than the sum of its proper divisors (125598730).

163966532 is an equidigital number, since it uses as much as digits as its factorization.

163966532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 686 counting only the distinct ones).

The product of its digits is 174960, while the sum is 41.

The square root of 163966532 is about 12804.9417023273. The cubic root of 163966532 is about 547.3331304112. Note that the first 3 decimals are identical.

The spelling of 163966532 in words is "one hundred sixty-three million, nine hundred sixty-six thousand, five hundred thirty-two".