80320516 has 6 divisors (see below), whose sum is σ = 140560910. Its totient is φ = 40160256.

The previous prime is 80320507. The next prime is 80320523. The reversal of 80320516 is 61502308.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52272900 + 28047616 = 7230^2 + 5296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10040061 + ... + 10040068.

Almost surely, 2^80320516 is an apocalyptic number.

It is an amenable number.

80320516 is a deficient number, since it is larger than the sum of its proper divisors (60240394).

80320516 is a wasteful number, since it uses less digits than its factorization.

80320516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080133 (or 20080131 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 80320516 is about 8962.1713886758. The cubic root of 80320516 is about 431.4616135430.

The spelling of 80320516 in words is "eighty million, three hundred twenty thousand, five hundred sixteen".