80506169361 has 12 divisors (see below), whose sum is σ = 116338701492. Its totient is φ = 53646773856.

The previous prime is 80506169329. The next prime is 80506169369. The reversal of 80506169361 is 16396160508.

80506169361 is a `hidden beast` number, since 80 + 50 + 6 + 169 + 361 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32119808400 + 48386360961 = 179220^2 + 219969^2 .

It is not a de Polignac number, because 80506169361 - 2⁵ = 80506169329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80506169369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979226 + ... + 2019491.

It is an arithmetic number, because the mean of its divisors is an integer number (9694891791).

Almost surely, 2^80506169361 is an apocalyptic number.

It is an amenable number.

80506169361 is a deficient number, since it is larger than the sum of its proper divisors (35832532131).

80506169361 is a wasteful number, since it uses less digits than its factorization.

80506169361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000960 (or 4000957 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 80506169361 in words is "eighty billion, five hundred six million, one hundred sixty-nine thousand, three hundred sixty-one".