165044353111 has 8 divisors (see below), whose sum is σ = 181240760448. Its totient is φ = 149046675000.

The previous prime is 165044353091. The next prime is 165044353193. The reversal of 165044353111 is 111353440561.

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

It is a cyclic number.

It is not a de Polignac number, because 165044353111 - 2¹³ = 165044344919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165044357111) 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, 49680565 + ... + 49683886.

It is an arithmetic number, because the mean of its divisors is an integer number (22655095056).

Almost surely, 2^165044353111 is an apocalyptic number.

165044353111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165044353111 is a deficient number, since it is larger than the sum of its proper divisors (16196407337).

165044353111 is a wasteful number, since it uses less digits than its factorization.

165044353111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99364613.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 165044353111 its reverse (111353440561), we get a palindrome (276397793672).

The spelling of 165044353111 in words is "one hundred sixty-five billion, forty-four million, three hundred fifty-three thousand, one hundred eleven".