6669661104 has 30 divisors (see below), whose sum is σ = 18665788076. Its totient is φ = 2223220320.

The previous prime is 6669661087. The next prime is 6669661111. The reversal of 6669661104 is 4011669666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6669661104.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 23158402 + ... + 23158689.

Almost surely, 2^6669661104 is an apocalyptic number.

It is an amenable number.

6669661104 is an abundant number, since it is smaller than the sum of its proper divisors (11996126972).

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

6669661104 is a wasteful number, since it uses less digits than its factorization.

6669661104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46317105 (or 46317096 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 6669661104 is about 81667.9931429688. The cubic root of 6669661104 is about 1882.3538029245.

The spelling of 6669661104 in words is "six billion, six hundred sixty-nine million, six hundred sixty-one thousand, one hundred four".