163163870 has 16 divisors (see below), whose sum is σ = 295338960. Its totient is φ = 64900224.

The previous prime is 163163857. The next prime is 163163873. The reversal of 163163870 is 78361361.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163163870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163163873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43787 + ... + 47366.

It is an arithmetic number, because the mean of its divisors is an integer number (18458685).

Almost surely, 2^163163870 is an apocalyptic number.

163163870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163163870 is a deficient number, since it is larger than the sum of its proper divisors (132175090).

163163870 is a wasteful number, since it uses less digits than its factorization.

163163870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91339.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 163163870 is about 12773.5613671364. The cubic root of 163163870 is about 546.4385528691.

The spelling of 163163870 in words is "one hundred sixty-three million, one hundred sixty-three thousand, eight hundred seventy".