16505201103 has 8 divisors (see below), whose sum is σ = 22039158528. Its totient is φ = 10987355544.

The previous prime is 16505201093. The next prime is 16505201107. The reversal of 16505201103 is 30110250561.

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

It is not a de Polignac number, because 16505201103 - 2¹⁶ = 16505135567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16505201107) 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, 4025575 + ... + 4029672.

It is an arithmetic number, because the mean of its divisors is an integer number (2754894816).

Almost surely, 2^16505201103 is an apocalyptic number.

16505201103 is a deficient number, since it is larger than the sum of its proper divisors (5533957425).

16505201103 is an equidigital number, since it uses as much as digits as its factorization.

16505201103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055933.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 16505201103 its reverse (30110250561), we get a palindrome (46615451664).

The spelling of 16505201103 in words is "sixteen billion, five hundred five million, two hundred one thousand, one hundred three".