80136220741 has 2 divisors, whose sum is σ = 80136220742. Its totient is φ = 80136220740.

The previous prime is 80136220727. The next prime is 80136220781. The reversal of 80136220741 is 14702263108.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70750680100 + 9385540641 = 265990^2 + 96879^2 .

It is a cyclic number.

It is not a de Polignac number, because 80136220741 - 2⁵ = 80136220709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80136220697 and 80136220706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80136220721) 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, 40068110370 + 40068110371.

It is an arithmetic number, because the mean of its divisors is an integer number (40068110371).

Almost surely, 2^80136220741 is an apocalyptic number.

It is an amenable number.

80136220741 is a deficient number, since it is larger than the sum of its proper divisors (1).

80136220741 is an equidigital number, since it uses as much as digits as its factorization.

80136220741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

Adding to 80136220741 its reverse (14702263108), we get a palindrome (94838483849).

The spelling of 80136220741 in words is "eighty billion, one hundred thirty-six million, two hundred twenty thousand, seven hundred forty-one".