6663008795040 has 1344 divisors, whose sum is σ = 26018290519200. Its totient is φ = 1601825144832.

The previous prime is 6663008795039. The next prime is 6663008795083. The reversal of 6663008795040 is 405978003666.

It can be written as a sum of positive squares in 16 ways, for example, as 72143811216 + 6590864983824 = 268596^2 + 2567268^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 13090390306 + ... + 13090390814.

Almost surely, 2^{6663008795040} is an apocalyptic number.

6663008795040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6663008795040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13009145259600).

6663008795040 is an abundant number, since it is smaller than the sum of its proper divisors (19355281724160).

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

6663008795040 is a wasteful number, since it uses less digits than its factorization.

6663008795040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 6663008795040 in words is "six trillion, six hundred sixty-three billion, eight million, seven hundred ninety-five thousand, forty".