79965084161 has 4 divisors (see below), whose sum is σ = 81091353024. Its totient is φ = 78838815300.

The previous prime is 79965084151. The next prime is 79965084191. The reversal of 79965084161 is 16148056997.

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.

It is a cyclic number.

It is not a de Polignac number, because 79965084161 - 2³⁰ = 78891342337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 79965084097 and 79965084106.

It is not an unprimeable number, because it can be changed into a prime (79965084151) 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, 563134325 + ... + 563134466.

It is an arithmetic number, because the mean of its divisors is an integer number (20272838256).

Almost surely, 2^79965084161 is an apocalyptic number.

79965084161 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79965084161 is the 126464-th centered decagonal number.

It is an amenable number.

79965084161 is a deficient number, since it is larger than the sum of its proper divisors (1126268863).

79965084161 is a wasteful number, since it uses less digits than its factorization.

79965084161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126268862.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 79965084161 in words is "seventy-nine billion, nine hundred sixty-five million, eighty-four thousand, one hundred sixty-one".