80330559381 has 40 divisors (see below), whose sum is σ = 125277180600. Its totient is φ = 51232487040.

The previous prime is 80330559347. The next prime is 80330559383. The reversal of 80330559381 is 18395503308.

It can be written as a sum of positive squares in 4 ways, for example, as 31272739281 + 49057820100 = 176841^2 + 221490^2 .

It is not a de Polignac number, because 80330559381 - 2¹⁴ = 80330542997 is a prime.

It is a super-2 number, since 2×80330559381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80330559383) 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 in 39 ways as a sum of consecutive naturals, for example, 99171 + ... + 412911.

It is an arithmetic number, because the mean of its divisors is an integer number (3131929515).

Almost surely, 2^80330559381 is an apocalyptic number.

80330559381 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

80330559381 is a deficient number, since it is larger than the sum of its proper divisors (44946621219).

80330559381 is a wasteful number, since it uses less digits than its factorization.

80330559381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313891 (or 313882 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 80330559381 in words is "eighty billion, three hundred thirty million, five hundred fifty-nine thousand, three hundred eighty-one".