80551516427 has 2 divisors, whose sum is σ = 80551516428. Its totient is φ = 80551516426.

The previous prime is 80551516421. The next prime is 80551516499. The reversal of 80551516427 is 72461515508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80551516427 - 2⁴ = 80551516411 is a prime.

It is not a weakly prime, because it can be changed into another prime (80551516421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40275758213 + 40275758214.

It is an arithmetic number, because the mean of its divisors is an integer number (40275758214).

Almost surely, 2^80551516427 is an apocalyptic number.

80551516427 is a deficient number, since it is larger than the sum of its proper divisors (1).

80551516427 is an equidigital number, since it uses as much as digits as its factorization.

80551516427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 80551516427 in words is "eighty billion, five hundred fifty-one million, five hundred sixteen thousand, four hundred twenty-seven".