855656111 has 6 divisors (see below), whose sum is σ = 858250512. Its totient is φ = 853064960.

The previous prime is 855656099. The next prime is 855656119. The reversal of 855656111 is 111656558.

It is not a de Polignac number, because 855656111 - 2¹⁴ = 855639727 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 (855656119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606575 + ... + 607983.

It is an arithmetic number, because the mean of its divisors is an integer number (143041752).

Almost surely, 2^855656111 is an apocalyptic number.

855656111 is a deficient number, since it is larger than the sum of its proper divisors (2594401).

855656111 is an frugal number, since it uses more digits than its factorization.

855656111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249 (or 1840 counting only the distinct ones).

The product of its digits is 36000, while the sum is 38.

The square root of 855656111 is about 29251.6001442656. The cubic root of 855656111 is about 949.3647132140.

The spelling of 855656111 in words is "eight hundred fifty-five million, six hundred fifty-six thousand, one hundred eleven".