161536336 has 40 divisors (see below), whose sum is σ = 342790560. Its totient is φ = 73286016.

The previous prime is 161536307. The next prime is 161536367. The reversal of 161536336 is 633635161.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5691 + ... + 18853.

It is an arithmetic number, because the mean of its divisors is an integer number (8569764).

Almost surely, 2^161536336 is an apocalyptic number.

161536336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161536336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171395280).

161536336 is an abundant number, since it is smaller than the sum of its proper divisors (181254224).

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

161536336 is a wasteful number, since it uses less digits than its factorization.

161536336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243 (or 13237 counting only the distinct ones).

The product of its digits is 29160, while the sum is 34.

The square root of 161536336 is about 12709.6945675339. The cubic root of 161536336 is about 544.6155985320.

The spelling of 161536336 in words is "one hundred sixty-one million, five hundred thirty-six thousand, three hundred thirty-six".