80516461508 has 18 divisors (see below), whose sum is σ = 163908511326. Its totient is φ = 34507054848.

The previous prime is 80516461489. The next prime is 80516461511.

80516461508 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 43584077824 + 36932383684 = 208768^2 + 192178^2 .

It is a super-3 number, since 3×80516461508³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205398941 + ... + 205399332.

It is an arithmetic number, because the mean of its divisors is an integer number (9106028407).

Almost surely, 2^80516461508 is an apocalyptic number.

It is an amenable number.

80516461508 is an abundant number, since it is smaller than the sum of its proper divisors (83392049818).

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

80516461508 is a wasteful number, since it uses less digits than its factorization.

80516461508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410798291 (or 410798282 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 80516461508 in words is "eighty billion, five hundred sixteen million, four hundred sixty-one thousand, five hundred eight".