6631340624 has 20 divisors (see below), whose sum is σ = 12885047700. Its totient is φ = 3306167040.

The previous prime is 6631340581. The next prime is 6631340633. The reversal of 6631340624 is 4260431366.

It can be written as a sum of positive squares in 2 ways, for example, as 1683625024 + 4947715600 = 41032^2 + 70340^2 .

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 3 ways as a sum of consecutive naturals, for example, 588197 + ... + 599364.

It is an arithmetic number, because the mean of its divisors is an integer number (644252385).

Almost surely, 2^6631340624 is an apocalyptic number.

It is an amenable number.

6631340624 is a deficient number, since it is larger than the sum of its proper divisors (6253707076).

6631340624 is a wasteful number, since it uses less digits than its factorization.

6631340624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187918 (or 1187912 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 6631340624 is about 81433.0438090091. The cubic root of 6631340624 is about 1878.7418607925.

The spelling of 6631340624 in words is "six billion, six hundred thirty-one million, three hundred forty thousand, six hundred twenty-four".