6668104505 has 4 divisors (see below), whose sum is σ = 8001725412. Its totient is φ = 5334483600.

The previous prime is 6668104483. The next prime is 6668104519. The reversal of 6668104505 is 5054018666.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2988590224 + 3679514281 = 54668^2 + 60659^2 .

It is not a de Polignac number, because 6668104505 - 2¹⁸ = 6667842361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666810446 + ... + 666810455.

It is an arithmetic number, because the mean of its divisors is an integer number (2000431353).

Almost surely, 2^6668104505 is an apocalyptic number.

It is an amenable number.

6668104505 is a deficient number, since it is larger than the sum of its proper divisors (1333620907).

6668104505 is a wasteful number, since it uses less digits than its factorization.

6668104505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333620906.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 6668104505 is about 81658.4625436948. The cubic root of 6668104505 is about 1882.2073538034.

The spelling of 6668104505 in words is "six billion, six hundred sixty-eight million, one hundred four thousand, five hundred five".