805028561201 has 4 divisors (see below), whose sum is σ = 805051809600. Its totient is φ = 805005312804.

The previous prime is 805028561189. The next prime is 805028561203. The reversal of 805028561201 is 102165820508.

805028561201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 805028561201 - 2¹⁰ = 805028560177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805028561203) 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, 11572181 + ... + 11641538.

It is an arithmetic number, because the mean of its divisors is an integer number (201262952400).

Almost surely, 2^805028561201 is an apocalyptic number.

It is an amenable number.

805028561201 is a deficient number, since it is larger than the sum of its proper divisors (23248399).

805028561201 is a wasteful number, since it uses less digits than its factorization.

805028561201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23248398.

The product of its (nonzero) digits is 38400, while the sum is 38.

The spelling of 805028561201 in words is "eight hundred five billion, twenty-eight million, five hundred sixty-one thousand, two hundred one".