80516238613 has 2 divisors, whose sum is σ = 80516238614. Its totient is φ = 80516238612.

The previous prime is 80516238599. The next prime is 80516238623. The reversal of 80516238613 is 31683261508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42334297009 + 38181941604 = 205753^2 + 195402^2 .

It is a cyclic number.

It is not a de Polignac number, because 80516238613 - 2²⁵ = 80482684181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80516238613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80516238623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40258119306 + 40258119307.

It is an arithmetic number, because the mean of its divisors is an integer number (40258119307).

Almost surely, 2^80516238613 is an apocalyptic number.

It is an amenable number.

80516238613 is a deficient number, since it is larger than the sum of its proper divisors (1).

80516238613 is an equidigital number, since it uses as much as digits as its factorization.

80516238613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 80516238613 in words is "eighty billion, five hundred sixteen million, two hundred thirty-eight thousand, six hundred thirteen".