8090809161 has 4 divisors (see below), whose sum is σ = 10787745552. Its totient is φ = 5393872772.

The previous prime is 8090809157. The next prime is 8090809183. The reversal of 8090809161 is 1619080908.

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 8090809161 - 2² = 8090809157 is a prime.

It is a super-2 number, since 2×8090809161² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8090809561) 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, 1348468191 + ... + 1348468196.

It is an arithmetic number, because the mean of its divisors is an integer number (2696936388).

Almost surely, 2^8090809161 is an apocalyptic number.

It is an amenable number.

8090809161 is a deficient number, since it is larger than the sum of its proper divisors (2696936391).

8090809161 is a wasteful number, since it uses less digits than its factorization.

8090809161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696936390.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 8090809161 is about 89948.9252909672. The cubic root of 8090809161 is about 2007.5389762943.

The spelling of 8090809161 in words is "eight billion, ninety million, eight hundred nine thousand, one hundred sixty-one".