165448836817 has 8 divisors (see below), whose sum is σ = 180492747840. Its totient is φ = 150405443760.

The previous prime is 165448836769. The next prime is 165448836827. The reversal of 165448836817 is 718638844561.

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

It is not a de Polignac number, because 165448836817 - 2¹¹ = 165448834769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165448836827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 881859 + ... + 1052887.

It is an arithmetic number, because the mean of its divisors is an integer number (22561593480).

Almost surely, 2^165448836817 is an apocalyptic number.

It is an amenable number.

165448836817 is a deficient number, since it is larger than the sum of its proper divisors (15043911023).

165448836817 is a wasteful number, since it uses less digits than its factorization.

165448836817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258983.

The product of its digits is 30965760, while the sum is 61.

The spelling of 165448836817 in words is "one hundred sixty-five billion, four hundred forty-eight million, eight hundred thirty-six thousand, eight hundred seventeen".