80790016 has 20 divisors (see below), whose sum is σ = 161423262. Its totient is φ = 40394752.

The previous prime is 80790013. The next prime is 80790067. The reversal of 80790016 is 61009708.

It can be written as a sum of positive squares in only one way, i.e., 68956416 + 11833600 = 8304^2 + 3440^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80790016.

It is not an unprimeable number, because it can be changed into a prime (80790013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78385 + ... + 79408.

Almost surely, 2^80790016 is an apocalyptic number.

It is an amenable number.

80790016 is a deficient number, since it is larger than the sum of its proper divisors (80633246).

80790016 is an equidigital number, since it uses as much as digits as its factorization.

80790016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157811 (or 157795 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 80790016 is about 8988.3266518301. The cubic root of 80790016 is about 432.3006594712.

The spelling of 80790016 in words is "eighty million, seven hundred ninety thousand, sixteen".