161320584 has 16 divisors (see below), whose sum is σ = 403301520. Its totient is φ = 53773520.

The previous prime is 161320567. The next prime is 161320613. The reversal of 161320584 is 485023161.

161320584 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 3360822 + ... + 3360869.

It is an arithmetic number, because the mean of its divisors is an integer number (25206345).

Almost surely, 2^161320584 is an apocalyptic number.

It is an amenable number.

161320584 is an abundant number, since it is smaller than the sum of its proper divisors (241980936).

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

161320584 is a wasteful number, since it uses less digits than its factorization.

161320584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721700 (or 6721696 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 161320584 is about 12701.2040374131. The cubic root of 161320584 is about 544.3730230652.

The spelling of 161320584 in words is "one hundred sixty-one million, three hundred twenty thousand, five hundred eighty-four".