6657103217 has 4 divisors (see below), whose sum is σ = 6675647040. Its totient is φ = 6638559396.

The previous prime is 6657103199. The next prime is 6657103237. The reversal of 6657103217 is 7123017566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6657103217 - 2¹² = 6657099121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6657103237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9271373 + ... + 9272090.

It is an arithmetic number, because the mean of its divisors is an integer number (1668911760).

Almost surely, 2^6657103217 is an apocalyptic number.

It is an amenable number.

6657103217 is a deficient number, since it is larger than the sum of its proper divisors (18543823).

6657103217 is a wasteful number, since it uses less digits than its factorization.

6657103217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18543822.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 6657103217 is about 81591.0731452896. The cubic root of 6657103217 is about 1881.1716720153.

The spelling of 6657103217 in words is "six billion, six hundred fifty-seven million, one hundred three thousand, two hundred seventeen".