6641306344415 has 4 divisors (see below), whose sum is σ = 7969567613304. Its totient is φ = 5313045075528.

The previous prime is 6641306344381. The next prime is 6641306344417. The reversal of 6641306344415 is 5144436031466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6641306344415 - 2⁸ = 6641306344159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6641306344415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6641306344417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664130634437 + ... + 664130634446.

It is an arithmetic number, because the mean of its divisors is an integer number (1992391903326).

Almost surely, 2^{6641306344415} is an apocalyptic number.

6641306344415 is a deficient number, since it is larger than the sum of its proper divisors (1328261268889).

6641306344415 is a wasteful number, since it uses less digits than its factorization.

6641306344415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328261268888.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 6641306344415 in words is "six trillion, six hundred forty-one billion, three hundred six million, three hundred forty-four thousand, four hundred fifteen".