165433541325 has 24 divisors (see below), whose sum is σ = 294556543008. Its totient is φ = 81444204480.

The previous prime is 165433541279. The next prime is 165433541333. The reversal of 165433541325 is 523145334561.

It is a happy number.

It is not a de Polignac number, because 165433541325 - 2⁷ = 165433541197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 84836739 + ... + 84838688.

It is an arithmetic number, because the mean of its divisors is an integer number (12273189292).

Almost surely, 2^165433541325 is an apocalyptic number.

165433541325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165433541325 is a deficient number, since it is larger than the sum of its proper divisors (129123001683).

165433541325 is a wasteful number, since it uses less digits than its factorization.

165433541325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169675453 (or 169675448 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

Adding to 165433541325 its reverse (523145334561), we get a palindrome (688578875886).

The spelling of 165433541325 in words is "one hundred sixty-five billion, four hundred thirty-three million, five hundred forty-one thousand, three hundred twenty-five".