161323888 has 20 divisors (see below), whose sum is σ = 340980408. Its totient is φ = 73328960.

The previous prime is 161323843. The next prime is 161323913. The reversal of 161323888 is 888323161.

It is a self number, because there is not a number n which added to its sum of digits gives 161323888.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458131 + ... + 458482.

Almost surely, 2^161323888 is an apocalyptic number.

It is an amenable number.

161323888 is an abundant number, since it is smaller than the sum of its proper divisors (179656520).

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

161323888 is a wasteful number, since it uses less digits than its factorization.

161323888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916632 (or 916626 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 161323888 is about 12701.3341031563. The cubic root of 161323888 is about 544.3767394667.

The spelling of 161323888 in words is "one hundred sixty-one million, three hundred twenty-three thousand, eight hundred eighty-eight".