6629651716 has 12 divisors (see below), whose sum is σ = 11716761420. Its totient is φ = 3282005600.

The previous prime is 6629651701. The next prime is 6629651719. The reversal of 6629651716 is 6171569266.

It can be written as a sum of positive squares in 2 ways, for example, as 5843073600 + 786578116 = 76440^2 + 28046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6629651716.

It is not an unprimeable number, because it can be changed into a prime (6629651719) by changing a digit.

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, 8204611 + ... + 8205418.

It is an arithmetic number, because the mean of its divisors is an integer number (976396785).

Almost surely, 2^6629651716 is an apocalyptic number.

It is an amenable number.

6629651716 is a deficient number, since it is larger than the sum of its proper divisors (5087109704).

6629651716 is a wasteful number, since it uses less digits than its factorization.

6629651716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16410134 (or 16410132 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 6629651716 is about 81422.6732304952. The cubic root of 6629651716 is about 1878.5823509864.

The spelling of 6629651716 in words is "six billion, six hundred twenty-nine million, six hundred fifty-one thousand, seven hundred sixteen".