8005506845 has 16 divisors (see below), whose sum is σ = 11456328960. Its totient is φ = 5250816384.

The previous prime is 8005506841. The next prime is 8005506913. The reversal of 8005506845 is 5486055008.

It is a cyclic number.

It is not a de Polignac number, because 8005506845 - 2² = 8005506841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8005506841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4971560 + ... + 4973169.

It is an arithmetic number, because the mean of its divisors is an integer number (716020560).

Almost surely, 2^8005506845 is an apocalyptic number.

It is an amenable number.

8005506845 is a deficient number, since it is larger than the sum of its proper divisors (3450822115).

8005506845 is a wasteful number, since it uses less digits than its factorization.

8005506845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944764.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 8005506845 is about 89473.4980035988. The cubic root of 8005506845 is about 2000.4587984939.

The spelling of 8005506845 in words is "eight billion, five million, five hundred six thousand, eight hundred forty-five".