161318848 has 56 divisors (see below), whose sum is σ = 344161872. Its totient is φ = 74747904.

The previous prime is 161318789. The next prime is 161318863. The reversal of 161318848 is 848813161.

It is a self number, because there is not a number n which added to its sum of digits gives 161318848.

It is a congruent number.

It is an unprimeable number.

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, 71790 + ... + 74002.

Almost surely, 2^161318848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161318848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172080936).

161318848 is an abundant number, since it is smaller than the sum of its proper divisors (182843024).

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

161318848 is a wasteful number, since it uses less digits than its factorization.

161318848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2299 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The square root of 161318848 is about 12701.1356972516. The cubic root of 161318848 is about 544.3710703593.

The spelling of 161318848 in words is "one hundred sixty-one million, three hundred eighteen thousand, eight hundred forty-eight".