80566321 has 8 divisors (see below), whose sum is σ = 90921600. Its totient is φ = 70716240.

The previous prime is 80566313. The next prime is 80566397. The reversal of 80566321 is 12366508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80566321 - 2³ = 80566313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80566021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125961 + ... + 126598.

It is an arithmetic number, because the mean of its divisors is an integer number (11365200).

Almost surely, 2^80566321 is an apocalyptic number.

It is an amenable number.

80566321 is a deficient number, since it is larger than the sum of its proper divisors (10355279).

80566321 is a wasteful number, since it uses less digits than its factorization.

80566321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252599.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 80566321 is about 8975.8743863760. The cubic root of 80566321 is about 431.9012995392.

The spelling of 80566321 in words is "eighty million, five hundred sixty-six thousand, three hundred twenty-one".