8161608160 has 24 divisors (see below), whose sum is σ = 19281799656. Its totient is φ = 3264643200.

The previous prime is 8161608109. The next prime is 8161608209. The reversal of 8161608160 is 618061618.

It is a happy number.

It is a super-2 number, since 2×8161608160² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25504866 + ... + 25505185.

It is an arithmetic number, because the mean of its divisors is an integer number (803408319).

Almost surely, 2^8161608160 is an apocalyptic number.

8161608160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8161608160 is an abundant number, since it is smaller than the sum of its proper divisors (11120191496).

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

8161608160 is a wasteful number, since it uses less digits than its factorization.

8161608160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010066 (or 51010058 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 8161608160 is about 90341.6192017832. The cubic root of 8161608160 is about 2013.3776661826.

Adding to 8161608160 its reverse (618061618), we get a palindrome (8779669778).

The spelling of 8161608160 in words is "eight billion, one hundred sixty-one million, six hundred eight thousand, one hundred sixty".