6555564236 has 24 divisors (see below), whose sum is σ = 12891881184. Its totient is φ = 2894094720.

The previous prime is 6555564229. The next prime is 6555564241. The reversal of 6555564236 is 6324655556.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2739425 + ... + 2741816.

It is an arithmetic number, because the mean of its divisors is an integer number (537161716).

Almost surely, 2^6555564236 is an apocalyptic number.

It is an amenable number.

6555564236 is a deficient number, since it is larger than the sum of its proper divisors (6336316948).

6555564236 is a wasteful number, since it uses less digits than its factorization.

6555564236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481281 (or 5481279 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 47.

The square root of 6555564236 is about 80966.4389484927. The cubic root of 6555564236 is about 1871.5582953988.

The spelling of 6555564236 in words is "six billion, five hundred fifty-five million, five hundred sixty-four thousand, two hundred thirty-six".