11601000161 has 8 divisors (see below), whose sum is σ = 11627963424. Its totient is φ = 11574062560.

The previous prime is 11601000157. The next prime is 11601000179. The reversal of 11601000161 is 16100010611.

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 11601000161 - 2² = 11601000157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11601090161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117766 + ... + 1128096.

It is an arithmetic number, because the mean of its divisors is an integer number (1453495428).

Almost surely, 2^11601000161 is an apocalyptic number.

It is an amenable number.

11601000161 is a deficient number, since it is larger than the sum of its proper divisors (26963263).

11601000161 is a wasteful number, since it uses less digits than its factorization.

11601000161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11601000161 its reverse (16100010611), we get a palindrome (27701010772).

The spelling of 11601000161 in words is "eleven billion, six hundred one million, one hundred sixty-one", and thus it is an aban number.