161330316 has 24 divisors (see below), whose sum is σ = 430214400. Its totient is φ = 46094352.

The previous prime is 161330297. The next prime is 161330339. The reversal of 161330316 is 613033161.

161330316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960216 + ... + 960383.

It is an arithmetic number, because the mean of its divisors is an integer number (17925600).

Almost surely, 2^161330316 is an apocalyptic number.

It is an amenable number.

161330316 is an abundant number, since it is smaller than the sum of its proper divisors (268884084).

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

161330316 is a wasteful number, since it uses less digits than its factorization.

161330316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920613 (or 1920611 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 161330316 is about 12701.5871449201. The cubic root of 161330316 is about 544.3839696570.

Adding to 161330316 its reverse (613033161), we get a palindrome (774363477).

The spelling of 161330316 in words is "one hundred sixty-one million, three hundred thirty thousand, three hundred sixteen".