80560166553 has 6 divisors (see below), whose sum is σ = 116364685034. Its totient is φ = 53706777696.

The previous prime is 80560166539. The next prime is 80560166623. The reversal of 80560166553 is 35566106508.

80560166553 is a `hidden beast` number, since 80 + 5 + 6 + 0 + 16 + 6 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80421586569 + 138579984 = 283587^2 + 11772^2 .

It is not a de Polignac number, because 80560166553 - 2¹⁰ = 80560165529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80560166499 and 80560166508.

It is not an unprimeable number, because it can be changed into a prime (80560166503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4475564800 + ... + 4475564817.

Almost surely, 2^80560166553 is an apocalyptic number.

It is an amenable number.

80560166553 is a deficient number, since it is larger than the sum of its proper divisors (35804518481).

80560166553 is a wasteful number, since it uses less digits than its factorization.

80560166553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8951129623 (or 8951129620 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 80560166553 in words is "eighty billion, five hundred sixty million, one hundred sixty-six thousand, five hundred fifty-three".