6695216568 has 64 divisors (see below), whose sum is σ = 19197772800. Its totient is φ = 2159745120.

The previous prime is 6695216557. The next prime is 6695216581. The reversal of 6695216568 is 8656125966.

6695216568 is a `hidden beast` number, since 6 + 69 + 5 + 2 + 16 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493246 + ... + 506637.

It is an arithmetic number, because the mean of its divisors is an integer number (299965200).

Almost surely, 2^6695216568 is an apocalyptic number.

It is an amenable number.

6695216568 is an abundant number, since it is smaller than the sum of its proper divisors (12502556232).

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

6695216568 is a wasteful number, since it uses less digits than its factorization.

6695216568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999929 (or 999919 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 6695216568 is about 81824.3030401115. The cubic root of 6695216568 is about 1884.7548802606.

The spelling of 6695216568 in words is "six billion, six hundred ninety-five million, two hundred sixteen thousand, five hundred sixty-eight".