160997724 has 18 divisors (see below), whose sum is σ = 406966560. Its totient is φ = 53665896.

The previous prime is 160997713. The next prime is 160997731. The reversal of 160997724 is 427799061.

160997724 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 (18).

It is a self number, because there is not a number n which added to its sum of digits gives 160997724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2236044 + ... + 2236115.

Almost surely, 2^160997724 is an apocalyptic number.

It is an amenable number.

160997724 is an abundant number, since it is smaller than the sum of its proper divisors (245968836).

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

160997724 is a wasteful number, since it uses less digits than its factorization.

160997724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472169 (or 4472164 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 160997724 is about 12688.4878531683. The cubic root of 160997724 is about 544.0096190269.

The spelling of 160997724 in words is "one hundred sixty million, nine hundred ninety-seven thousand, seven hundred twenty-four".