6673557305 has 8 divisors (see below), whose sum is σ = 8014547592. Its totient is φ = 5334659968.

The previous prime is 6673557211. The next prime is 6673557329. The reversal of 6673557305 is 5037553766.

It is a happy number.

6673557305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 726679849 + 5946877456 = 26957^2 + 77116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6673557305 - 2⁸ = 6673557049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6673557305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516212 + ... + 528981.

It is an arithmetic number, because the mean of its divisors is an integer number (1001818449).

Almost surely, 2^6673557305 is an apocalyptic number.

It is an amenable number.

6673557305 is a deficient number, since it is larger than the sum of its proper divisors (1340990287).

6673557305 is a wasteful number, since it uses less digits than its factorization.

6673557305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046475.

The product of its (nonzero) digits is 1984500, while the sum is 47.

The square root of 6673557305 is about 81691.8435647036. The cubic root of 6673557305 is about 1882.7202683774.

The spelling of 6673557305 in words is "six billion, six hundred seventy-three million, five hundred fifty-seven thousand, three hundred five".