80581015513 has 2 divisors, whose sum is σ = 80581015514. Its totient is φ = 80581015512.

The previous prime is 80581015481. The next prime is 80581015523. The reversal of 80581015513 is 31551018508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56167578009 + 24413437504 = 236997^2 + 156248^2 .

It is a cyclic number.

It is not a de Polignac number, because 80581015513 - 2⁵ = 80581015481 is a prime.

It is a super-2 number, since 2×80581015513² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80581015523) 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, 40290507756 + 40290507757.

It is an arithmetic number, because the mean of its divisors is an integer number (40290507757).

Almost surely, 2^80581015513 is an apocalyptic number.

It is an amenable number.

80581015513 is a deficient number, since it is larger than the sum of its proper divisors (1).

80581015513 is an equidigital number, since it uses as much as digits as its factorization.

80581015513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 37.

The spelling of 80581015513 in words is "eighty billion, five hundred eighty-one million, fifteen thousand, five hundred thirteen".