161924368 has 20 divisors (see below), whose sum is σ = 317510928. Its totient is φ = 79986080.

The previous prime is 161924359. The next prime is 161924383. The reversal of 161924368 is 863429161.

It is a self number, because there is not a number n which added to its sum of digits gives 161924368.

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 3 ways as a sum of consecutive naturals, for example, 59638 + ... + 62293.

Almost surely, 2^161924368 is an apocalyptic number.

It is an amenable number.

161924368 is a deficient number, since it is larger than the sum of its proper divisors (155586560).

161924368 is a wasteful number, since it uses less digits than its factorization.

161924368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122022 (or 122016 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 161924368 is about 12724.9506089415. The cubic root of 161924368 is about 545.0513297894.

The spelling of 161924368 in words is "one hundred sixty-one million, nine hundred twenty-four thousand, three hundred sixty-eight".