6646656203 has 12 divisors (see below), whose sum is σ = 7336428960. Its totient is φ = 6017106480.

The previous prime is 6646656167. The next prime is 6646656221. The reversal of 6646656203 is 3026566466.

It is not a de Polignac number, because 6646656203 - 2⁶ = 6646656139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6646656253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86000 + ... + 143837.

It is an arithmetic number, because the mean of its divisors is an integer number (611369080).

Almost surely, 2^6646656203 is an apocalyptic number.

6646656203 is a deficient number, since it is larger than the sum of its proper divisors (689772757).

6646656203 is a wasteful number, since it uses less digits than its factorization.

6646656203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230098 (or 230087 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 44.

The square root of 6646656203 is about 81527.0274387580. The cubic root of 6646656203 is about 1880.1871138456.

The spelling of 6646656203 in words is "six billion, six hundred forty-six million, six hundred fifty-six thousand, two hundred three".