6650650650 has 96 divisors (see below), whose sum is σ = 18869649408. Its totient is φ = 1518552000.

The previous prime is 6650650639. The next prime is 6650650651. The reversal of 6650650650 is 560560566.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6650650599 and 6650650608.

It is not an unprimeable number, because it can be changed into a prime (6650650651) 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 47 ways as a sum of consecutive naturals, for example, 1205799 + ... + 1211301.

It is an arithmetic number, because the mean of its divisors is an integer number (196558848).

Almost surely, 2^6650650650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6650650650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9434824704).

6650650650 is an abundant number, since it is smaller than the sum of its proper divisors (12218998758).

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

6650650650 is a wasteful number, since it uses less digits than its factorization.

6650650650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 6671 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 6650650650 is about 81551.5214450350. The cubic root of 6650650650 is about 1880.5636843375.

The spelling of 6650650650 in words is "six billion, six hundred fifty million, six hundred fifty thousand, six hundred fifty".