163378168 has 16 divisors (see below), whose sum is σ = 306517680. Its totient is φ = 81640128.

The previous prime is 163378151. The next prime is 163378219. The reversal of 163378168 is 861873361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10821 + ... + 21067.

It is an arithmetic number, because the mean of its divisors is an integer number (19157355).

Almost surely, 2^163378168 is an apocalyptic number.

It is an amenable number.

163378168 is a deficient number, since it is larger than the sum of its proper divisors (143139512).

163378168 is a wasteful number, since it uses less digits than its factorization.

163378168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12246 (or 12242 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 163378168 is about 12781.9469565477. The cubic root of 163378168 is about 546.6776774172.

It can be divided in two parts, 16337 and 8168, that multiplied together give a triangular number (133440616 = T₁₆₃₃₆).

The spelling of 163378168 in words is "one hundred sixty-three million, three hundred seventy-eight thousand, one hundred sixty-eight".