6629650656 has 48 divisors (see below), whose sum is σ = 17414941824. Its totient is φ = 2208345984.

The previous prime is 6629650619. The next prime is 6629650661. The reversal of 6629650656 is 6560569266.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 6629650599 and 6629650608.

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, 119085 + ... + 165651.

It is an arithmetic number, because the mean of its divisors is an integer number (362811288).

Almost surely, 2^6629650656 is an apocalyptic number.

It is an amenable number.

6629650656 is an abundant number, since it is smaller than the sum of its proper divisors (10785291168).

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

6629650656 is a wasteful number, since it uses less digits than its factorization.

6629650656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48063 (or 48055 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 51.

The square root of 6629650656 is about 81422.6667212515. Note that the first 3 decimals coincide. The cubic root of 6629650656 is about 1878.5822508656.

The spelling of 6629650656 in words is "six billion, six hundred twenty-nine million, six hundred fifty thousand, six hundred fifty-six".