6556555066 has 8 divisors (see below), whose sum is σ = 9973351584. Its totient is φ = 3232104540.

The previous prime is 6556555001. The next prime is 6556555081. The reversal of 6556555066 is 6605556556.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23086320 + ... + 23086603.

It is an arithmetic number, because the mean of its divisors is an integer number (1246668948).

Almost surely, 2^6556555066 is an apocalyptic number.

6556555066 is a deficient number, since it is larger than the sum of its proper divisors (3416796518).

6556555066 is a wasteful number, since it uses less digits than its factorization.

6556555066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46172996.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The square root of 6556555066 is about 80972.5574870894. The cubic root of 6556555066 is about 1871.6525818512.

The spelling of 6556555066 in words is "six billion, five hundred fifty-six million, five hundred fifty-five thousand, sixty-six".