161835968 has 28 divisors (see below), whose sum is σ = 367021872. Its totient is φ = 69358080.

The previous prime is 161835953. The next prime is 161835991. The reversal of 161835968 is 869538161.

161835968 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

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 3 ways as a sum of consecutive naturals, for example, 180173 + ... + 181068.

It is an arithmetic number, because the mean of its divisors is an integer number (13107924).

Almost surely, 2^161835968 is an apocalyptic number.

It is an amenable number.

161835968 is an abundant number, since it is smaller than the sum of its proper divisors (205185904).

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

161835968 is an equidigital number, since it uses as much as digits as its factorization.

161835968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361260 (or 361250 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 161835968 is about 12721.4766438492. The cubic root of 161835968 is about 544.9521244032.

The spelling of 161835968 in words is "one hundred sixty-one million, eight hundred thirty-five thousand, nine hundred sixty-eight".