80816069 has 8 divisors (see below), whose sum is σ = 84264960. Its totient is φ = 77411376.

The previous prime is 80816051. The next prime is 80816083. The reversal of 80816069 is 96061808.

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 80816069 - 2¹⁶ = 80750533 is a prime.

It is a super-2 number, since 2×80816069² = 13062474017225522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80816269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7289 + ... + 14654.

It is an arithmetic number, because the mean of its divisors is an integer number (10533120).

Almost surely, 2^80816069 is an apocalyptic number.

It is an amenable number.

80816069 is a deficient number, since it is larger than the sum of its proper divisors (3448891).

80816069 is a wasteful number, since it uses less digits than its factorization.

80816069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22099.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 80816069 is about 8989.7758036561. The cubic root of 80816069 is about 432.3471236227.

The spelling of 80816069 in words is "eighty million, eight hundred sixteen thousand, sixty-nine".