6631660320160 has 48 divisors (see below), whose sum is σ = 15881918048136. Its totient is φ = 2616326258688.

The previous prime is 6631660320143. The next prime is 6631660320163. The reversal of 6631660320160 is 610230661366.

It can be written as a sum of positive squares in 4 ways, for example, as 5552413598736 + 1079246721424 = 2356356^2 + 1038868^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6631660320163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283877889 + ... + 283901248.

Almost surely, 2^{6631660320160} is an apocalyptic number.

It is an amenable number.

6631660320160 is an abundant number, since it is smaller than the sum of its proper divisors (9250257727976).

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

6631660320160 is a wasteful number, since it uses less digits than its factorization.

6631660320160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567779225 (or 567779217 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The spelling of 6631660320160 in words is "six trillion, six hundred thirty-one billion, six hundred sixty million, three hundred twenty thousand, one hundred sixty".