6644141573 has 2 divisors, whose sum is σ = 6644141574. Its totient is φ = 6644141572.

The previous prime is 6644141563. The next prime is 6644141627. The reversal of 6644141573 is 3751414466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6599612644 + 44528929 = 81238^2 + 6673^2 .

It is a cyclic number.

It is not a de Polignac number, because 6644141573 - 2⁶ = 6644141509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6644141573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6644141513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322070786 + 3322070787.

It is an arithmetic number, because the mean of its divisors is an integer number (3322070787).

Almost surely, 2^6644141573 is an apocalyptic number.

It is an amenable number.

6644141573 is a deficient number, since it is larger than the sum of its proper divisors (1).

6644141573 is an equidigital number, since it uses as much as digits as its factorization.

6644141573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 6644141573 is about 81511.6039162523. The cubic root of 6644141573 is about 1879.9499734877.

The spelling of 6644141573 in words is "six billion, six hundred forty-four million, one hundred forty-one thousand, five hundred seventy-three".