4020808080805 has 16 divisors (see below), whose sum is σ = 4870219172544. Its totient is φ = 3186482078080.

The previous prime is 4020808080733. The next prime is 4020808080829. The reversal of 4020808080805 is 5080808080204.

It is a happy number.

4020808080805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4020808080805 - 2¹⁷ = 4020807949733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19564914 + ... + 19769356.

It is an arithmetic number, because the mean of its divisors is an integer number (304388698284).

Almost surely, 2^{4020808080805} is an apocalyptic number.

It is an amenable number.

4020808080805 is a deficient number, since it is larger than the sum of its proper divisors (849411091739).

4020808080805 is a wasteful number, since it uses less digits than its factorization.

4020808080805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241316.

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 4020808080805 in words is "four trillion, twenty billion, eight hundred eight million, eighty thousand, eight hundred five".