6631316736 has 72 divisors (see below), whose sum is σ = 19253449824. Its totient is φ = 2009487360.

The previous prime is 6631316719. The next prime is 6631316777. The reversal of 6631316736 is 6376131366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384031 + ... + 400926.

Almost surely, 2^6631316736 is an apocalyptic number.

6631316736 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6631316736 is an abundant number, since it is smaller than the sum of its proper divisors (12622133088).

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

6631316736 is a wasteful number, since it uses less digits than its factorization.

6631316736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784987 (or 784973 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 6631316736 is about 81432.8971362311. The cubic root of 6631316736 is about 1878.7396048666.

The spelling of 6631316736 in words is "six billion, six hundred thirty-one million, three hundred sixteen thousand, seven hundred thirty-six".