163156880 has 20 divisors (see below), whose sum is σ = 379339932. Its totient is φ = 65262720.

The previous prime is 163156853. The next prime is 163156891. The reversal of 163156880 is 88651361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121528576 + 41628304 = 11024^2 + 6452^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 1019651 + ... + 1019810.

Almost surely, 2^163156880 is an apocalyptic number.

163156880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163156880 is an abundant number, since it is smaller than the sum of its proper divisors (216183052).

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

163156880 is a wasteful number, since it uses less digits than its factorization.

163156880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039474 (or 2039468 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 163156880 is about 12773.2877521803. The cubic root of 163156880 is about 546.4307495484.

The spelling of 163156880 in words is "one hundred sixty-three million, one hundred fifty-six thousand, eight hundred eighty".