6566556141 has 8 divisors (see below), whose sum is σ = 9728231360. Its totient is φ = 4377704076.

The previous prime is 6566556091. The next prime is 6566556149. The reversal of 6566556141 is 1416556656.

6566556141 is a `hidden beast` number, since 6 + 56 + 6 + 556 + 1 + 41 = 666.

It is not a de Polignac number, because 6566556141 - 2¹⁰ = 6566555117 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 (6566556149) 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 7 ways as a sum of consecutive naturals, for example, 121602865 + ... + 121602918.

It is an arithmetic number, because the mean of its divisors is an integer number (1216028920).

Almost surely, 2^6566556141 is an apocalyptic number.

It is an amenable number.

6566556141 is a deficient number, since it is larger than the sum of its proper divisors (3161675219).

6566556141 is a wasteful number, since it uses less digits than its factorization.

6566556141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243205792 (or 243205786 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 6566556141 is about 81034.2899086553. The cubic root of 6566556141 is about 1872.6037433601.

The spelling of 6566556141 in words is "six billion, five hundred sixty-six million, five hundred fifty-six thousand, one hundred forty-one".