11161200171603 has 8 divisors (see below), whose sum is σ = 15361651849216. Its totient is φ = 7200774304200.

The previous prime is 11161200171593. The next prime is 11161200171629. The reversal of 11161200171603 is 30617100216111.

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

It is not a de Polignac number, because 11161200171603 - 2⁹ = 11161200171091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11161200171643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60006452443 + ... + 60006452628.

It is an arithmetic number, because the mean of its divisors is an integer number (1920206481152).

Almost surely, 2^{11161200171603} is an apocalyptic number.

11161200171603 is a deficient number, since it is larger than the sum of its proper divisors (4200451677613).

11161200171603 is a wasteful number, since it uses less digits than its factorization.

11161200171603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120012905105.

The product of its (nonzero) digits is 1512, while the sum is 30.

Adding to 11161200171603 its reverse (30617100216111), we get a palindrome (41778300387714).

The spelling of 11161200171603 in words is "eleven trillion, one hundred sixty-one billion, two hundred million, one hundred seventy-one thousand, six hundred three".