6605662573 has 2 divisors, whose sum is σ = 6605662574. Its totient is φ = 6605662572.

The previous prime is 6605662549. The next prime is 6605662589. The reversal of 6605662573 is 3752665066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5170616649 + 1435045924 = 71907^2 + 37882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6605662573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6605602573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3302831286 + 3302831287.

It is an arithmetic number, because the mean of its divisors is an integer number (3302831287).

Almost surely, 2^6605662573 is an apocalyptic number.

It is an amenable number.

6605662573 is a deficient number, since it is larger than the sum of its proper divisors (1).

6605662573 is an equidigital number, since it uses as much as digits as its factorization.

6605662573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The square root of 6605662573 is about 81275.2273020507. The cubic root of 6605662573 is about 1876.3137528683.

The spelling of 6605662573 in words is "six billion, six hundred five million, six hundred sixty-two thousand, five hundred seventy-three".