6544056266 has 16 divisors (see below), whose sum is σ = 11272059360. Its totient is φ = 2818014480.

The previous prime is 6544056257. The next prime is 6544056287. The reversal of 6544056266 is 6626504456.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 7827401 + ... + 7828236.

It is an arithmetic number, because the mean of its divisors is an integer number (704503710).

Almost surely, 2^6544056266 is an apocalyptic number.

6544056266 is a deficient number, since it is larger than the sum of its proper divisors (4728003094).

6544056266 is a wasteful number, since it uses less digits than its factorization.

6544056266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15655669.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The square root of 6544056266 is about 80895.3414357094. The cubic root of 6544056266 is about 1870.4625111603.

The spelling of 6544056266 in words is "six billion, five hundred forty-four million, fifty-six thousand, two hundred sixty-six".