163604164 has 24 divisors (see below), whose sum is σ = 297114048. Its totient is φ = 78768480.

The previous prime is 163604159. The next prime is 163604171. The reversal of 163604164 is 461406361.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5514 + ... + 18910.

It is an arithmetic number, because the mean of its divisors is an integer number (12379752).

Almost surely, 2^163604164 is an apocalyptic number.

It is an amenable number.

163604164 is a deficient number, since it is larger than the sum of its proper divisors (133509884).

163604164 is a wasteful number, since it uses less digits than its factorization.

163604164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13515 (or 13513 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 163604164 is about 12790.7843387339. The cubic root of 163604164 is about 546.9296287589.

The spelling of 163604164 in words is "one hundred sixty-three million, six hundred four thousand, one hundred sixty-four".