80816586 has 16 divisors (see below), whose sum is σ = 161888544. Its totient is φ = 26896304.

The previous prime is 80816579. The next prime is 80816599. The reversal of 80816586 is 68561808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6396 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (10118034).

Almost surely, 2^80816586 is an apocalyptic number.

80816586 is an abundant number, since it is smaller than the sum of its proper divisors (81071958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80816586 is a wasteful number, since it uses less digits than its factorization.

80816586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21285.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 80816586 is about 8989.8045584985. The cubic root of 80816586 is about 432.3480455639.

The spelling of 80816586 in words is "eighty million, eight hundred sixteen thousand, five hundred eighty-six".