80016503 has 16 divisors (see below), whose sum is σ = 93519360. Its totient is φ = 67048800.

The previous prime is 80016491. The next prime is 80016511. The reversal of 80016503 is 30561008.

It is not a de Polignac number, because 80016503 - 2¹² = 80012407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80016553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64493 + ... + 65721.

It is an arithmetic number, because the mean of its divisors is an integer number (5844960).

Almost surely, 2^80016503 is an apocalyptic number.

80016503 is a deficient number, since it is larger than the sum of its proper divisors (13502857).

80016503 is a wasteful number, since it uses less digits than its factorization.

80016503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 80016503 is about 8945.1944081725. The cubic root of 80016503 is about 430.9165648323.

The spelling of 80016503 in words is "eighty million, sixteen thousand, five hundred three".