163193656 has 16 divisors (see below), whose sum is σ = 306129600. Its totient is φ = 81559104.

The previous prime is 163193651. The next prime is 163193663. The reversal of 163193656 is 656391361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163193651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23836 + ... + 29908.

It is an arithmetic number, because the mean of its divisors is an integer number (19133100).

Almost surely, 2^163193656 is an apocalyptic number.

It is an amenable number.

163193656 is a deficient number, since it is larger than the sum of its proper divisors (142935944).

163193656 is a wasteful number, since it uses less digits than its factorization.

163193656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438 (or 9434 counting only the distinct ones).

The product of its digits is 87480, while the sum is 40.

The square root of 163193656 is about 12774.7272377926. The cubic root of 163193656 is about 546.4718021181.

The spelling of 163193656 in words is "one hundred sixty-three million, one hundred ninety-three thousand, six hundred fifty-six".