6316806641688 has 64 divisors (see below), whose sum is σ = 17547486768000. Its totient is φ = 2105506015776.

The previous prime is 6316806641687. The next prime is 6316806641689. The reversal of 6316806641688 is 8861466086136.

6316806641688 is a `hidden beast` number, since 6 + 3 + 1 + 6 + 80 + 66 + 416 + 88 = 666.

It is an interprime number because it is at equal distance from previous prime (6316806641687) and next prime (6316806641689).

It is a super-2 number, since 2×6316806641688² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6316806641681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4151031 + ... + 5464857.

It is an arithmetic number, because the mean of its divisors is an integer number (274179480750).

Almost surely, 2^{6316806641688} is an apocalyptic number.

It is an amenable number.

6316806641688 is an abundant number, since it is smaller than the sum of its proper divisors (11230680126312).

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

6316806641688 is a wasteful number, since it uses less digits than its factorization.

6316806641688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336101 (or 1336091 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 6316806641688 in words is "six trillion, three hundred sixteen billion, eight hundred six million, six hundred forty-one thousand, six hundred eighty-eight".