165026330 has 64 divisors (see below), whose sum is σ = 354060288. Its totient is φ = 54190080.

The previous prime is 165026287. The next prime is 165026341. The reversal of 165026330 is 33620561.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 165026330.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 244874 + ... + 245546.

It is an arithmetic number, because the mean of its divisors is an integer number (5532192).

Almost surely, 2^165026330 is an apocalyptic number.

165026330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165026330 is an abundant number, since it is smaller than the sum of its proper divisors (189033958).

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

165026330 is a wasteful number, since it uses less digits than its factorization.

165026330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 165026330 is about 12846.2574316413. The cubic root of 165026330 is about 548.5098284302.

Adding to 165026330 its reverse (33620561), we get a palindrome (198646891).

The spelling of 165026330 in words is "one hundred sixty-five million, twenty-six thousand, three hundred thirty".