6631550560 has 48 divisors (see below), whose sum is σ = 15749137152. Its totient is φ = 2638720000.

The previous prime is 6631550557. The next prime is 6631550561. The reversal of 6631550560 is 650551366.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631550561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77941 + ... + 139060.

It is an arithmetic number, because the mean of its divisors is an integer number (328107024).

Almost surely, 2^6631550560 is an apocalyptic number.

It is an amenable number.

6631550560 is an abundant number, since it is smaller than the sum of its proper divisors (9117586592).

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

6631550560 is a wasteful number, since it uses less digits than its factorization.

6631550560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217207 (or 217199 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 6631550560 is about 81434.3328087116. The cubic root of 6631550560 is about 1878.7616864161.

The spelling of 6631550560 in words is "six billion, six hundred thirty-one million, five hundred fifty thousand, five hundred sixty".