161544384 has 168 divisors, whose sum is σ = 505206000. Its totient is φ = 49158144.

The previous prime is 161544337. The next prime is 161544389. The reversal of 161544384 is 483445161.

161544384 is a `hidden beast` number, since 1 + 615 + 4 + 4 + 38 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (161544389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317122 + ... + 317630.

Almost surely, 2^161544384 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 161544384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252603000).

161544384 is an abundant number, since it is smaller than the sum of its proper divisors (343661616).

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

161544384 is a wasteful number, since it uses less digits than its factorization.

161544384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 562 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 161544384 is about 12710.0111723004. The cubic root of 161544384 is about 544.6246429234.

The spelling of 161544384 in words is "one hundred sixty-one million, five hundred forty-four thousand, three hundred eighty-four".