80021612008 has 32 divisors (see below), whose sum is σ = 164630831400. Its totient is φ = 36236199168.

The previous prime is 80021611987. The next prime is 80021612009.

80021612008 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 70863504804 + 9158107204 = 266202^2 + 95698^2 .

It is not an unprimeable number, because it can be changed into a prime (80021612009) 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 7 ways as a sum of consecutive naturals, for example, 7253343 + ... + 7264366.

Almost surely, 2^80021612008 is an apocalyptic number.

It is an amenable number.

80021612008 is an abundant number, since it is smaller than the sum of its proper divisors (84609219392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80021612008 is a wasteful number, since it uses less digits than its factorization.

80021612008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14517781 (or 14517777 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 80021612008 in words is "eighty billion, twenty-one million, six hundred twelve thousand, eight".