16163971180 has 48 divisors (see below), whose sum is σ = 38878572096. Its totient is φ = 5529784320.

The previous prime is 16163971163. The next prime is 16163971189. The reversal of 16163971180 is 8117936161.

It is a super-2 number, since 2×16163971180² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16163971189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62341 + ... + 190300.

It is an arithmetic number, because the mean of its divisors is an integer number (809970252).

Almost surely, 2^16163971180 is an apocalyptic number.

16163971180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16163971180 is an abundant number, since it is smaller than the sum of its proper divisors (22714600916).

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

16163971180 is a wasteful number, since it uses less digits than its factorization.

16163971180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253114 (or 253112 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 16163971180 in words is "sixteen billion, one hundred sixty-three million, nine hundred seventy-one thousand, one hundred eighty".