80398679161 has 4 divisors (see below), whose sum is σ = 80539483024. Its totient is φ = 80257875300.

The previous prime is 80398679107. The next prime is 80398679191. The reversal of 80398679161 is 16197689308.

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 80398679161 - 2²¹ = 80396582009 is a prime.

It is a super-2 number, since 2×80398679161² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80398679096 and 80398679105.

It is not an unprimeable number, because it can be changed into a prime (80398679191) 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, 70401075 + ... + 70402216.

It is an arithmetic number, because the mean of its divisors is an integer number (20134870756).

Almost surely, 2^80398679161 is an apocalyptic number.

It is an amenable number.

80398679161 is a deficient number, since it is larger than the sum of its proper divisors (140803863).

80398679161 is a wasteful number, since it uses less digits than its factorization.

80398679161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140803862.

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 80398679161 in words is "eighty billion, three hundred ninety-eight million, six hundred seventy-nine thousand, one hundred sixty-one".