6656082418240 has 28 divisors (see below), whose sum is σ = 15849796259196. Its totient is φ = 2662432967168.

The previous prime is 6656082418217. The next prime is 6656082418243. The reversal of 6656082418240 is 428142806566.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3140097409024 + 3515985009216 = 1772032^2 + 1875096^2 .

It is not an unprimeable number, because it can be changed into a prime (6656082418243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10400128459 + ... + 10400129098.

Almost surely, 2^{6656082418240} is an apocalyptic number.

It is an amenable number.

6656082418240 is an abundant number, since it is smaller than the sum of its proper divisors (9193713840956).

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

6656082418240 is a wasteful number, since it uses less digits than its factorization.

6656082418240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800257574 (or 20800257564 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 6656082418240 in words is "six trillion, six hundred fifty-six billion, eighty-two million, four hundred eighteen thousand, two hundred forty".