6644112222543 has 32 divisors (see below), whose sum is σ = 9131016287232. Its totient is φ = 4294654790400.

The previous prime is 6644112222521. The next prime is 6644112222581. The reversal of 6644112222543 is 3452222114466.

It is not a de Polignac number, because 6644112222543 - 2⁶ = 6644112222479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6644112222495 and 6644112222504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644112222343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114815805 + ... + 114873657.

It is an arithmetic number, because the mean of its divisors is an integer number (285344258976).

Almost surely, 2^{6644112222543} is an apocalyptic number.

6644112222543 is a deficient number, since it is larger than the sum of its proper divisors (2486904064689).

6644112222543 is a wasteful number, since it uses less digits than its factorization.

6644112222543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63655.

The product of its digits is 552960, while the sum is 42.

The spelling of 6644112222543 in words is "six trillion, six hundred forty-four billion, one hundred twelve million, two hundred twenty-two thousand, five hundred forty-three".