6566556142 has 16 divisors (see below), whose sum is σ = 10369843200. Its totient is φ = 3109995000.

The previous prime is 6566556091. The next prime is 6566556149. The reversal of 6566556142 is 2416556656.

It is a super-5 number, since 5×6566556142⁵ (a number of 50 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6566556092 and 6566556101.

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, 419859 + ... + 435217.

It is an arithmetic number, because the mean of its divisors is an integer number (648115200).

Almost surely, 2^6566556142 is an apocalyptic number.

6566556142 is a deficient number, since it is larger than the sum of its proper divisors (3803287058).

6566556142 is a wasteful number, since it uses less digits than its factorization.

6566556142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26631.

The product of its digits is 1296000, while the sum is 46.

The square root of 6566556142 is about 81034.2899148256. The cubic root of 6566556142 is about 1872.6037434552.

The spelling of 6566556142 in words is "six billion, five hundred sixty-six million, five hundred fifty-six thousand, one hundred forty-two".