6345645305 has 8 divisors (see below), whose sum is σ = 7615441152. Its totient is φ = 5076071728.

The previous prime is 6345645269. The next prime is 6345645307. The reversal of 6345645305 is 5035465436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6345645305 - 2¹² = 6345641209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6345645307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15512 + ... + 113718.

It is an arithmetic number, because the mean of its divisors is an integer number (951930144).

Almost surely, 2^6345645305 is an apocalyptic number.

It is an amenable number.

6345645305 is a deficient number, since it is larger than the sum of its proper divisors (1269795847).

6345645305 is a wasteful number, since it uses less digits than its factorization.

6345645305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111135.

The product of its (nonzero) digits is 648000, while the sum is 41.

The square root of 6345645305 is about 79659.5587798476. The cubic root of 6345645305 is about 1851.3644966337.

The spelling of 6345645305 in words is "six billion, three hundred forty-five million, six hundred forty-five thousand, three hundred five".