80216664503 has 2 divisors, whose sum is σ = 80216664504. Its totient is φ = 80216664502.

The previous prime is 80216664499. The next prime is 80216664553. The reversal of 80216664503 is 30546661208.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80216664503 - 2² = 80216664499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80216664553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40108332251 + 40108332252.

It is an arithmetic number, because the mean of its divisors is an integer number (40108332252).

Almost surely, 2^80216664503 is an apocalyptic number.

80216664503 is a deficient number, since it is larger than the sum of its proper divisors (1).

80216664503 is an equidigital number, since it uses as much as digits as its factorization.

80216664503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 80216664503 in words is "eighty billion, two hundred sixteen million, six hundred sixty-four thousand, five hundred three".