80537566 has 12 divisors (see below), whose sum is σ = 124832016. Its totient is φ = 38968860.

The previous prime is 80537563. The next prime is 80537591. The reversal of 80537566 is 66573508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80537563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19030 + ... + 22873.

It is an arithmetic number, because the mean of its divisors is an integer number (10402668).

Almost surely, 2^80537566 is an apocalyptic number.

80537566 is a deficient number, since it is larger than the sum of its proper divisors (44294450).

80537566 is a wasteful number, since it uses less digits than its factorization.

80537566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41967 (or 41936 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 80537566 is about 8974.2724496195. The cubic root of 80537566 is about 431.8499099944.

The spelling of 80537566 in words is "eighty million, five hundred thirty-seven thousand, five hundred sixty-six".