80316565 has 16 divisors (see below), whose sum is σ = 111957120. Its totient is φ = 54169920.

The previous prime is 80316559. The next prime is 80316569. The reversal of 80316565 is 56561308.

It is not a de Polignac number, because 80316565 - 2⁹ = 80316053 is a prime.

It is a super-2 number, since 2×80316565² = 12901501226798450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80316565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80316569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16675 + ... + 20944.

It is an arithmetic number, because the mean of its divisors is an integer number (6997320).

Almost surely, 2^80316565 is an apocalyptic number.

It is an amenable number.

80316565 is a deficient number, since it is larger than the sum of its proper divisors (31640555).

80316565 is a wasteful number, since it uses less digits than its factorization.

80316565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37692.

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

The square root of 80316565 is about 8961.9509594731. The cubic root of 80316565 is about 431.4545388341.

The spelling of 80316565 in words is "eighty million, three hundred sixteen thousand, five hundred sixty-five".