80566351 has 4 divisors (see below), whose sum is σ = 80649792. Its totient is φ = 80482912.

The previous prime is 80566313. The next prime is 80566397. The reversal of 80566351 is 15366508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80566351 - 2⁷ = 80566223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80566051) 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, 40255 + ... + 42208.

It is an arithmetic number, because the mean of its divisors is an integer number (20162448).

Almost surely, 2^80566351 is an apocalyptic number.

80566351 is a deficient number, since it is larger than the sum of its proper divisors (83441).

80566351 is an equidigital number, since it uses as much as digits as its factorization.

80566351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83440.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 80566351 is about 8975.8760575222. The cubic root of 80566351 is about 431.9013531474.

The spelling of 80566351 in words is "eighty million, five hundred sixty-six thousand, three hundred fifty-one".