80845516 has 6 divisors (see below), whose sum is σ = 141479660. Its totient is φ = 40422756.

The previous prime is 80845507. The next prime is 80845537. The reversal of 80845516 is 61554808.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10105686 + ... + 10105693.

Almost surely, 2^80845516 is an apocalyptic number.

It is an amenable number.

80845516 is a deficient number, since it is larger than the sum of its proper divisors (60634144).

80845516 is a wasteful number, since it uses less digits than its factorization.

80845516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20211383 (or 20211381 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 80845516 is about 8991.4134595179. The cubic root of 80845516 is about 432.3996287739.

The spelling of 80845516 in words is "eighty million, eight hundred forty-five thousand, five hundred sixteen".