6671288661440 has 112 divisors (see below), whose sum is σ = 17109437655072. Its totient is φ = 2463039000576.

The previous prime is 6671288661439. The next prime is 6671288661467. The reversal of 6671288661440 is 441668821766.

It is a self number, because there is not a number n which added to its sum of digits gives 6671288661440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55130282 + ... + 55251158.

It is an arithmetic number, because the mean of its divisors is an integer number (152762836206).

Almost surely, 2^{6671288661440} is an apocalyptic number.

It is an amenable number.

6671288661440 is an abundant number, since it is smaller than the sum of its proper divisors (10438148993632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6671288661440 is a wasteful number, since it uses less digits than its factorization.

6671288661440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134174 (or 134164 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 6671288661440 in words is "six trillion, six hundred seventy-one billion, two hundred eighty-eight million, six hundred sixty-one thousand, four hundred forty".