80517065201 has 4 divisors (see below), whose sum is σ = 85253363172. Its totient is φ = 75780767232.

The previous prime is 80517065197. The next prime is 80517065249. The reversal of 80517065201 is 10256071508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72455718976 + 8061346225 = 269176^2 + 89785^2 .

It is a cyclic number.

It is not a de Polignac number, because 80517065201 - 2² = 80517065197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80517265201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368148960 + ... + 2368148993.

It is an arithmetic number, because the mean of its divisors is an integer number (21313340793).

Almost surely, 2^80517065201 is an apocalyptic number.

It is an amenable number.

80517065201 is a deficient number, since it is larger than the sum of its proper divisors (4736297971).

80517065201 is a wasteful number, since it uses less digits than its factorization.

80517065201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736297970.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 80517065201 in words is "eighty billion, five hundred seventeen million, sixty-five thousand, two hundred one".