165338446 has 72 divisors (see below), whose sum is σ = 319188600. Its totient is φ = 63999936.

The previous prime is 165338443. The next prime is 165338449. The reversal of 165338446 is 644833561.

It is an interprime number because it is at equal distance from previous prime (165338443) and next prime (165338449).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 165338399 and 165338408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165338441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1109580 + ... + 1109728.

It is an arithmetic number, because the mean of its divisors is an integer number (4433175).

Almost surely, 2^165338446 is an apocalyptic number.

165338446 is a deficient number, since it is larger than the sum of its proper divisors (153850154).

165338446 is a wasteful number, since it uses less digits than its factorization.

165338446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 238 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 165338446 is about 12858.3998226840. The cubic root of 165338446 is about 548.8554114188.

The spelling of 165338446 in words is "one hundred sixty-five million, three hundred thirty-eight thousand, four hundred forty-six".