6640287044848 has 40 divisors (see below), whose sum is σ = 12910696497360. Its totient is φ = 3308501798400.

The previous prime is 6640287044803. The next prime is 6640287044899. The reversal of 6640287044848 is 8484407820466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14230668 + ... + 14689876.

It is an arithmetic number, because the mean of its divisors is an integer number (322767412434).

Almost surely, 2^{6640287044848} is an apocalyptic number.

It is an amenable number.

6640287044848 is a deficient number, since it is larger than the sum of its proper divisors (6270409452512).

6640287044848 is a wasteful number, since it uses less digits than its factorization.

6640287044848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462385 (or 462379 counting only the distinct ones).

The product of its (nonzero) digits is 66060288, while the sum is 61.

The spelling of 6640287044848 in words is "six trillion, six hundred forty billion, two hundred eighty-seven million, forty-four thousand, eight hundred forty-eight".