80243918753666 has 8 divisors (see below), whose sum is σ = 120409035499260. Its totient is φ = 40107573587248.

The previous prime is 80243918753659. The next prime is 80243918753671. The reversal of 80243918753666 is 66635781934208.

It can be written as a sum of positive squares in 2 ways, for example, as 79725344499025 + 518574254641 = 8928905^2 + 720121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 80243918753596 and 80243918753605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7192887821 + ... + 7192898976.

It is a 1-persistent number, because it is pandigital, but 2⋅80243918753666 = 160487837507332 is not.

Almost surely, 2^{80243918753666} is an apocalyptic number.

80243918753666 is a deficient number, since it is larger than the sum of its proper divisors (40165116745594).

80243918753666 is a wasteful number, since it uses less digits than its factorization.

80243918753666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14385789588.

The product of its (nonzero) digits is 313528320, while the sum is 68.

The spelling of 80243918753666 in words is "eighty trillion, two hundred forty-three billion, nine hundred eighteen million, seven hundred fifty-three thousand, six hundred sixty-six".