80814066733 has 4 divisors (see below), whose sum is σ = 81224290620. Its totient is φ = 80403842848.

The previous prime is 80814066721. The next prime is 80814066737. The reversal of 80814066733 is 33766041808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63631576009 + 17182490724 = 252253^2 + 131082^2 .

It is a cyclic number.

It is not a de Polignac number, because 80814066733 - 2¹³ = 80814058541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80814066737) 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 3 ways as a sum of consecutive naturals, for example, 205111648 + ... + 205112041.

It is an arithmetic number, because the mean of its divisors is an integer number (20306072655).

Almost surely, 2^80814066733 is an apocalyptic number.

It is an amenable number.

80814066733 is a deficient number, since it is larger than the sum of its proper divisors (410223887).

80814066733 is a wasteful number, since it uses less digits than its factorization.

80814066733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410223886.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 80814066733 in words is "eighty billion, eight hundred fourteen million, sixty-six thousand, seven hundred thirty-three".