11695898161 has 4 divisors (see below), whose sum is σ = 11707797312. Its totient is φ = 11683999012.

The previous prime is 11695898131. The next prime is 11695898177. The reversal of 11695898161 is 16189859611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16189859611 = 17 ⋅952344683.

It is a cyclic number.

It is not a de Polignac number, because 11695898161 - 2⁹ = 11695897649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11695898101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5948101 + ... + 5950066.

It is an arithmetic number, because the mean of its divisors is an integer number (2926949328).

Almost surely, 2^11695898161 is an apocalyptic number.

It is an amenable number.

11695898161 is a deficient number, since it is larger than the sum of its proper divisors (11899151).

11695898161 is an equidigital number, since it uses as much as digits as its factorization.

11695898161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899150.

The product of its digits is 933120, while the sum is 55.

The spelling of 11695898161 in words is "eleven billion, six hundred ninety-five million, eight hundred ninety-eight thousand, one hundred sixty-one".