163870368 has 48 divisors (see below), whose sum is σ = 430992576. Its totient is φ = 54517760.

The previous prime is 163870351. The next prime is 163870381. The reversal of 163870368 is 863078361.

163870368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60205 + ... + 62867.

It is an arithmetic number, because the mean of its divisors is an integer number (8979012).

Almost surely, 2^163870368 is an apocalyptic number.

It is an amenable number.

163870368 is an abundant number, since it is smaller than the sum of its proper divisors (267122208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163870368 is a wasteful number, since it uses less digits than its factorization.

163870368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 163870368 is about 12801.1861950368. The cubic root of 163870368 is about 547.2261084974.

The spelling of 163870368 in words is "one hundred sixty-three million, eight hundred seventy thousand, three hundred sixty-eight".