6605023445 has 4 divisors (see below), whose sum is σ = 7926028140. Its totient is φ = 5284018752.

The previous prime is 6605023433. The next prime is 6605023489. The reversal of 6605023445 is 5443205066.

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 2591420836 + 4013602609 = 50906^2 + 63353^2 .

It is a cyclic number.

It is not a de Polignac number, because 6605023445 - 2¹⁸ = 6604761301 is a prime.

It is a congruent 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, 660502340 + ... + 660502349.

It is an arithmetic number, because the mean of its divisors is an integer number (1981507035).

Almost surely, 2^6605023445 is an apocalyptic number.

It is an amenable number.

6605023445 is a deficient number, since it is larger than the sum of its proper divisors (1321004695).

6605023445 is a wasteful number, since it uses less digits than its factorization.

6605023445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321004694.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6605023445 is about 81271.2953323620. The cubic root of 6605023445 is about 1876.2532369437.

The spelling of 6605023445 in words is "six billion, six hundred five million, twenty-three thousand, four hundred forty-five".