6668641103 has 4 divisors (see below), whose sum is σ = 6831290928. Its totient is φ = 6505991280.

The previous prime is 6668641079. The next prime is 6668641117. The reversal of 6668641103 is 3011468666.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6668641103 - 2¹² = 6668637007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 162649783 = 6668641103 / (6 + 6 + 6 + 8 + 6 + 4 + 1 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668641123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81324851 + ... + 81324932.

It is an arithmetic number, because the mean of its divisors is an integer number (1707822732).

Almost surely, 2^6668641103 is an apocalyptic number.

6668641103 is a deficient number, since it is larger than the sum of its proper divisors (162649825).

6668641103 is a wasteful number, since it uses less digits than its factorization.

6668641103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162649824.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6668641103 is about 81661.7481015438. The cubic root of 6668641103 is about 1882.2578409950.

The spelling of 6668641103 in words is "six billion, six hundred sixty-eight million, six hundred forty-one thousand, one hundred three".