16163144772 has 24 divisors (see below), whose sum is σ = 38168392416. Its totient is φ = 5322802368.

The previous prime is 16163144761. The next prime is 16163144779. The reversal of 16163144772 is 27744136161.

It is a super-2 number, since 2×16163144772² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16163144779) 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 7 ways as a sum of consecutive naturals, for example, 8113033 + ... + 8115024.

It is an arithmetic number, because the mean of its divisors is an integer number (1590349684).

Almost surely, 2^16163144772 is an apocalyptic number.

16163144772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16163144772 is an abundant number, since it is smaller than the sum of its proper divisors (22005247644).

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

16163144772 is a wasteful number, since it uses less digits than its factorization.

16163144772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16228147 (or 16228145 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

It can be divided in two parts, 161631 and 44772, that added together give a triangular number (206403 = T₆₄₂).

The spelling of 16163144772 in words is "sixteen billion, one hundred sixty-three million, one hundred forty-four thousand, seven hundred seventy-two".