165323551101 has 8 divisors (see below), whose sum is σ = 220558020384. Its totient is φ = 110152391280.

The previous prime is 165323551097. The next prime is 165323551111. The reversal of 165323551101 is 101155323561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 165323551101 - 2² = 165323551097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165323551111) 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, 15821271 + ... + 15831716.

It is an arithmetic number, because the mean of its divisors is an integer number (27569752548).

Almost surely, 2^165323551101 is an apocalyptic number.

It is an amenable number.

165323551101 is a deficient number, since it is larger than the sum of its proper divisors (55234469283).

165323551101 is a wasteful number, since it uses less digits than its factorization.

165323551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31654731.

The product of its (nonzero) digits is 13500, while the sum is 33.

Adding to 165323551101 its reverse (101155323561), we get a palindrome (266478874662).

The spelling of 165323551101 in words is "one hundred sixty-five billion, three hundred twenty-three million, five hundred fifty-one thousand, one hundred one".