80351816 has 16 divisors (see below), whose sum is σ = 153503100. Its totient is φ = 39417664.

The previous prime is 80351813. The next prime is 80351849. The reversal of 80351816 is 61815308.

It can be written as a sum of positive squares in 2 ways, for example, as 77616100 + 2735716 = 8810^2 + 1654^2 .

It is not an unprimeable number, because it can be changed into a prime (80351813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94331 + ... + 95178.

Almost surely, 2^80351816 is an apocalyptic number.

It is an amenable number.

80351816 is a deficient number, since it is larger than the sum of its proper divisors (73151284).

80351816 is a wasteful number, since it uses less digits than its factorization.

80351816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189568 (or 189564 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 80351816 is about 8963.9174471879. The cubic root of 80351816 is about 431.5176515074.

The spelling of 80351816 in words is "eighty million, three hundred fifty-one thousand, eight hundred sixteen".