6604069145 has 4 divisors (see below), whose sum is σ = 7924882980. Its totient is φ = 5283255312.

The previous prime is 6604069117. The next prime is 6604069181. The reversal of 6604069145 is 5419604066.

6604069145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1789374601 + 4814694544 = 42301^2 + 69388^2 .

It is a cyclic number.

It is not a de Polignac number, because 6604069145 - 2²⁶ = 6536960281 is a prime.

It is a super-2 number, since 2×6604069145² = 87227458543882062050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660406910 + ... + 660406919.

It is an arithmetic number, because the mean of its divisors is an integer number (1981220745).

Almost surely, 2^6604069145 is an apocalyptic number.

It is an amenable number.

6604069145 is a deficient number, since it is larger than the sum of its proper divisors (1320813835).

6604069145 is a wasteful number, since it uses less digits than its factorization.

6604069145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320813834.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6604069145 is about 81265.4240436854. The cubic root of 6604069145 is about 1876.1628716474.

The spelling of 6604069145 in words is "six billion, six hundred four million, sixty-nine thousand, one hundred forty-five".