80817798033 has 168 divisors, whose sum is σ = 148086984960. Its totient is φ = 43898863680.

The previous prime is 80817798031. The next prime is 80817798043. The reversal of 80817798033 is 33089771808.

It is not a de Polignac number, because 80817798033 - 2¹ = 80817798031 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80817798031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 65333091 + ... + 65334327.

Almost surely, 2^80817798033 is an apocalyptic number.

It is an amenable number.

80817798033 is a deficient number, since it is larger than the sum of its proper divisors (67269186927).

80817798033 is a wasteful number, since it uses less digits than its factorization.

80817798033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 80817798033 in words is "eighty billion, eight hundred seventeen million, seven hundred ninety-eight thousand, thirty-three".