161586368 has 28 divisors (see below), whose sum is σ = 326090280. Its totient is φ = 79421952.

The previous prime is 161586367. The next prime is 161586401. The reversal of 161586368 is 863685161.

161586368 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 2×161586368² = 52220308646862848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161586367) 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 3 ways as a sum of consecutive naturals, for example, 17621 + ... + 25172.

Almost surely, 2^161586368 is an apocalyptic number.

It is an amenable number.

161586368 is an abundant number, since it is smaller than the sum of its proper divisors (164503912).

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

161586368 is an equidigital number, since it uses as much as digits as its factorization.

161586368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42864 (or 42854 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 161586368 is about 12711.6626764558. The cubic root of 161586368 is about 544.6718199280.

The spelling of 161586368 in words is "one hundred sixty-one million, five hundred eighty-six thousand, three hundred sixty-eight".