6646663050 has 48 divisors (see below), whose sum is σ = 17200416960. Its totient is φ = 1695379840.

The previous prime is 6646663007. The next prime is 6646663063. The reversal of 6646663050 is 503666466.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6646662993 and 6646663011.

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 23 ways as a sum of consecutive naturals, for example, 959835 + ... + 966734.

It is an arithmetic number, because the mean of its divisors is an integer number (358342020).

Almost surely, 2^6646663050 is an apocalyptic number.

6646663050 is an abundant number, since it is smaller than the sum of its proper divisors (10553753910).

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

6646663050 is a wasteful number, since it uses less digits than its factorization.

6646663050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926607 (or 1926602 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 6646663050 is about 81527.0694309565. The cubic root of 6646663050 is about 1880.1877594653.

The spelling of 6646663050 in words is "six billion, six hundred forty-six million, six hundred sixty-three thousand, fifty".