161301553316 has 12 divisors (see below), whose sum is σ = 282332897280. Its totient is φ = 80635011240.

The previous prime is 161301553163. The next prime is 161301553327. The reversal of 161301553316 is 613355103161.

161301553316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161301553316² (a number of 23 digits) contains 22 as substring.

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, 3918320 + ... + 3959271.

It is an arithmetic number, because the mean of its divisors is an integer number (23527741440).

Almost surely, 2^161301553316 is an apocalyptic number.

It is an amenable number.

161301553316 is a deficient number, since it is larger than the sum of its proper divisors (121031343964).

161301553316 is a wasteful number, since it uses less digits than its factorization.

161301553316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882714 (or 7882712 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

Adding to 161301553316 its reverse (613355103161), we get a palindrome (774656656477).

The spelling of 161301553316 in words is "one hundred sixty-one billion, three hundred one million, five hundred fifty-three thousand, three hundred sixteen".