6605428345057 has 4 divisors (see below), whose sum is σ = 6606374281920. Its totient is φ = 6604482408196.

The previous prime is 6605428345039. The next prime is 6605428345063. The reversal of 6605428345057 is 7505438245066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6605428345057 - 2²³ = 6605419956449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6605428344989 and 6605428345007.

It is not an unprimeable number, because it can be changed into a prime (6605428345007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472957957 + ... + 472971922.

It is an arithmetic number, because the mean of its divisors is an integer number (1651593570480).

Almost surely, 2^{6605428345057} is an apocalyptic number.

It is an amenable number.

6605428345057 is a deficient number, since it is larger than the sum of its proper divisors (945936863).

6605428345057 is an equidigital number, since it uses as much as digits as its factorization.

6605428345057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945936862.

The product of its (nonzero) digits is 24192000, while the sum is 55.

Subtracting 6605428345057 from its reverse (7505438245066), we obtain a palindrome (900009900009).

The spelling of 6605428345057 in words is "six trillion, six hundred five billion, four hundred twenty-eight million, three hundred forty-five thousand, fifty-seven".