6568404345 has 16 divisors (see below), whose sum is σ = 11677163520. Its totient is φ = 3503148912.

The previous prime is 6568404307. The next prime is 6568404347. The reversal of 6568404345 is 5434048656.

6568404345 is a `hidden beast` number, since 6 + 568 + 4 + 0 + 43 + 45 = 666.

It is not a de Polignac number, because 6568404345 - 2¹⁵ = 6568371577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6568404345.

It is not an unprimeable number, because it can be changed into a prime (6568404347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24327289 + ... + 24327558.

It is an arithmetic number, because the mean of its divisors is an integer number (729822720).

Almost surely, 2^6568404345 is an apocalyptic number.

It is an amenable number.

6568404345 is a deficient number, since it is larger than the sum of its proper divisors (5108759175).

6568404345 is a wasteful number, since it uses less digits than its factorization.

6568404345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48654861 (or 48654855 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The square root of 6568404345 is about 81045.6929453996. The cubic root of 6568404345 is about 1872.7794127674.

The spelling of 6568404345 in words is "six billion, five hundred sixty-eight million, four hundred four thousand, three hundred forty-five".