806555656 has 32 divisors (see below), whose sum is σ = 1567800000. Its totient is φ = 388535616.

The previous prime is 806555623. The next prime is 806555657. The reversal of 806555656 is 656555608.

It is not an unprimeable number, because it can be changed into a prime (806555657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112285 + ... + 119251.

It is an arithmetic number, because the mean of its divisors is an integer number (48993750).

Almost surely, 2^806555656 is an apocalyptic number.

It is an amenable number.

806555656 is a deficient number, since it is larger than the sum of its proper divisors (761244344).

806555656 is a wasteful number, since it uses less digits than its factorization.

806555656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7501 (or 7497 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The square root of 806555656 is about 28399.9235210238. The cubic root of 806555656 is about 930.8465933417.

The spelling of 806555656 in words is "eight hundred six million, five hundred fifty-five thousand, six hundred fifty-six".