805564851103 has 8 divisors (see below), whose sum is σ = 807924118176. Its totient is φ = 803207328000.

The previous prime is 805564851097. The next prime is 805564851127. The reversal of 805564851103 is 301158465508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805564851103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805564851173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492075 + ... + 1361347.

It is an arithmetic number, because the mean of its divisors is an integer number (100990514772).

Almost surely, 2^805564851103 is an apocalyptic number.

805564851103 is a deficient number, since it is larger than the sum of its proper divisors (2359267073).

805564851103 is a wasteful number, since it uses less digits than its factorization.

805564851103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871985.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 805564851103 in words is "eight hundred five billion, five hundred sixty-four million, eight hundred fifty-one thousand, one hundred three".