6646717441 has 24 divisors (see below), whose sum is σ = 8360458944. Its totient is φ = 5172672960.

The previous prime is 6646717433. The next prime is 6646717453. The reversal of 6646717441 is 1447176466.

It is not a de Polignac number, because 6646717441 - 2³ = 6646717433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6646717391 and 6646717400.

It is not an unprimeable number, because it can be changed into a prime (6646717421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26110 + ... + 118216.

It is an arithmetic number, because the mean of its divisors is an integer number (348352456).

Almost surely, 2^6646717441 is an apocalyptic number.

6646717441 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6646717441 is a deficient number, since it is larger than the sum of its proper divisors (1713741503).

6646717441 is a wasteful number, since it uses less digits than its factorization.

6646717441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92201 (or 92188 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 6646717441 is about 81527.4030065965. The cubic root of 6646717441 is about 1880.1928881047.

The spelling of 6646717441 in words is "six billion, six hundred forty-six million, seven hundred seventeen thousand, four hundred forty-one".