163111128 has 16 divisors (see below), whose sum is σ = 407777880. Its totient is φ = 54370368.

The previous prime is 163111111. The next prime is 163111129. The reversal of 163111128 is 821111361.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 6796297 = 163111128 / (1 + 6 + 3 + 1 + 1 + 1 + 1 + 2 + 8).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 163111098 and 163111107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163111129) 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, 3398125 + ... + 3398172.

Almost surely, 2^163111128 is an apocalyptic number.

It is an amenable number.

163111128 is an abundant number, since it is smaller than the sum of its proper divisors (244666752).

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

163111128 is a wasteful number, since it uses less digits than its factorization.

163111128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796306 (or 6796302 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 163111128 is about 12771.4967016399. The cubic root of 163111128 is about 546.3796685747.

Adding to 163111128 its reverse (821111361), we get a palindrome (984222489).

The spelling of 163111128 in words is "one hundred sixty-three million, one hundred eleven thousand, one hundred twenty-eight".