165730396 has 24 divisors (see below), whose sum is σ = 317006480. Its totient is φ = 75347712.

The previous prime is 165730391. The next prime is 165730403. The reversal of 165730396 is 693037561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165730391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20301 + ... + 27268.

Almost surely, 2^165730396 is an apocalyptic number.

It is an amenable number.

165730396 is a deficient number, since it is larger than the sum of its proper divisors (151276084).

165730396 is a wasteful number, since it uses less digits than its factorization.

165730396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47653 (or 47651 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 165730396 is about 12873.6318107984. The cubic root of 165730396 is about 549.2887732430.

The spelling of 165730396 in words is "one hundred sixty-five million, seven hundred thirty thousand, three hundred ninety-six".