80605161 has 24 divisors (see below), whose sum is σ = 143299520. Its totient is φ = 42516576.

The previous prime is 80605121. The next prime is 80605199. The reversal of 80605161 is 16150608.

80605161 = T₂₄₃₀ + T₂₄₃₁ + ... + T₂₄₅₆.

It is not a de Polignac number, because 80605161 - 2⁶ = 80605097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80605121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48391 + ... + 50028.

Almost surely, 2^80605161 is an apocalyptic number.

It is an amenable number.

80605161 is a deficient number, since it is larger than the sum of its proper divisors (62694359).

80605161 is a wasteful number, since it uses less digits than its factorization.

80605161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98445 (or 98442 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 80605161 is about 8978.0377031955. The cubic root of 80605161 is about 431.9706930993.

Adding to 80605161 its reverse (16150608), we get a palindrome (96755769).

The spelling of 80605161 in words is "eighty million, six hundred five thousand, one hundred sixty-one".