165143322504303 has 192 divisors, whose sum is σ = 270847204024320. Its totient is φ = 88842223008000.

The previous prime is 165143322504269. The next prime is 165143322504317. The reversal of 165143322504303 is 303405223341561.

165143322504303 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165143322504303 - 2¹⁰ = 165143322503279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165143322504203) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10646844318 + ... + 10646859828.

It is an arithmetic number, because the mean of its divisors is an integer number (1410662520960).

Almost surely, 2^{165143322504303} is an apocalyptic number.

165143322504303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

165143322504303 is a deficient number, since it is larger than the sum of its proper divisors (105703881520017).

165143322504303 is a wasteful number, since it uses less digits than its factorization.

165143322504303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16402 (or 16391 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

Adding to 165143322504303 its reverse (303405223341561), we get a palindrome (468548545845864).

The spelling of 165143322504303 in words is "one hundred sixty-five trillion, one hundred forty-three billion, three hundred twenty-two million, five hundred four thousand, three hundred three".