80982805201 has 4 divisors (see below), whose sum is σ = 80983462500. Its totient is φ = 80982147904.

The previous prime is 80982805073. The next prime is 80982805217. The reversal of 80982805201 is 10250828908.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 71571600 + 80911233601 = 8460^2 + 284449^2 .

It is a cyclic number.

It is not a de Polignac number, because 80982805201 - 2⁷ = 80982805073 is a prime.

It is a super-2 number, since 2×80982805201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80982805801) 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, 82276 + ... + 410773.

It is an arithmetic number, because the mean of its divisors is an integer number (20245865625).

Almost surely, 2^80982805201 is an apocalyptic number.

It is an amenable number.

80982805201 is a deficient number, since it is larger than the sum of its proper divisors (657299).

80982805201 is a wasteful number, since it uses less digits than its factorization.

80982805201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657298.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 80982805201 in words is "eighty billion, nine hundred eighty-two million, eight hundred five thousand, two hundred one".