163911480 has 256 divisors, whose sum is σ = 558144000. Its totient is φ = 38320128.

The previous prime is 163911469. The next prime is 163911487. The reversal of 163911480 is 84119361.

163911480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163911487) 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 63 ways as a sum of consecutive naturals, for example, 2446407 + ... + 2446473.

It is an arithmetic number, because the mean of its divisors is an integer number (2180250).

Almost surely, 2^163911480 is an apocalyptic number.

163911480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163911480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279072000).

163911480 is an abundant number, since it is smaller than the sum of its proper divisors (394232520).

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

163911480 is a wasteful number, since it uses less digits than its factorization.

163911480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 163911480 is about 12802.7918830230. The cubic root of 163911480 is about 547.2718675913.

It can be divided in two parts, 16391 and 1480, that added together give a palindrome (17871).

The spelling of 163911480 in words is "one hundred sixty-three million, nine hundred eleven thousand, four hundred eighty".