165331038 has 16 divisors (see below), whose sum is σ = 345038976. Its totient is φ = 52714200.

The previous prime is 165331037. The next prime is 165331043. The reversal of 165331038 is 830133561.

165331038 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165330996 and 165331014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165331031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598888 + ... + 599163.

It is an arithmetic number, because the mean of its divisors is an integer number (21564936).

Almost surely, 2^165331038 is an apocalyptic number.

165331038 is an abundant number, since it is smaller than the sum of its proper divisors (179707938).

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

165331038 is a wasteful number, since it uses less digits than its factorization.

165331038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198079.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 165331038 is about 12858.1117587304. Note that the first 3 decimals coincide. The cubic root of 165331038 is about 548.8472141287.

Adding to 165331038 its reverse (830133561), we get a palindrome (995464599).

It can be divided in two parts, 16533 and 1038, that added together give a palindrome (17571).

The spelling of 165331038 in words is "one hundred sixty-five million, three hundred thirty-one thousand, thirty-eight".