808840080101 has 2 divisors, whose sum is σ = 808840080102. Its totient is φ = 808840080100.

The previous prime is 808840080079. The next prime is 808840080143. The reversal of 808840080101 is 101080048808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729954931876 + 78885148225 = 854374^2 + 280865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808840080101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808840080001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404420040050 + 404420040051.

It is an arithmetic number, because the mean of its divisors is an integer number (404420040051).

Almost surely, 2^808840080101 is an apocalyptic number.

It is an amenable number.

808840080101 is a deficient number, since it is larger than the sum of its proper divisors (1).

808840080101 is an equidigital number, since it uses as much as digits as its factorization.

808840080101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 38.

The spelling of 808840080101 in words is "eight hundred eight billion, eight hundred forty million, eighty thousand, one hundred one".