80341823553581 has 2 divisors, whose sum is σ = 80341823553582. Its totient is φ = 80341823553580.

The previous prime is 80341823553559. The next prime is 80341823553611. The reversal of 80341823553581 is 18535532814308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45883350375625 + 34458473177956 = 6773725^2 + 5870134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80341823553581 is a prime.

It is a super-2 number, since 2×80341823553581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80341823553281) 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, 40170911776790 + 40170911776791.

It is an arithmetic number, because the mean of its divisors is an integer number (40170911776791).

Almost surely, 2^{80341823553581} is an apocalyptic number.

It is an amenable number.

80341823553581 is a deficient number, since it is larger than the sum of its proper divisors (1).

80341823553581 is an equidigital number, since it uses as much as digits as its factorization.

80341823553581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824000, while the sum is 56.

The spelling of 80341823553581 in words is "eighty trillion, three hundred forty-one billion, eight hundred twenty-three million, five hundred fifty-three thousand, five hundred eighty-one".