11535242161 has 8 divisors (see below), whose sum is σ = 11754106560. Its totient is φ = 11317156272.

The previous prime is 11535242153. The next prime is 11535242167. The reversal of 11535242161 is 16124253511.

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

It is not a de Polignac number, because 11535242161 - 2³ = 11535242153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11535242167) 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, 164670 + ... + 224023.

It is an arithmetic number, because the mean of its divisors is an integer number (1469263320).

Almost surely, 2^11535242161 is an apocalyptic number.

It is an amenable number.

11535242161 is a deficient number, since it is larger than the sum of its proper divisors (218864399).

11535242161 is an equidigital number, since it uses as much as digits as its factorization.

11535242161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389255.

The product of its digits is 7200, while the sum is 31.

Adding to 11535242161 its reverse (16124253511), we get a palindrome (27659495672).

The spelling of 11535242161 in words is "eleven billion, five hundred thirty-five million, two hundred forty-two thousand, one hundred sixty-one".