64305603205 has 8 divisors (see below), whose sum is σ = 77729985432. Its totient is φ = 51068974848.

The previous prime is 64305603169. The next prime is 64305603209. The reversal of 64305603205 is 50230650346.

It can be written as a sum of positive squares in 4 ways, for example, as 117353889 + 64188249316 = 10833^2 + 253354^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64305603205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64305603209) 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 7 ways as a sum of consecutive naturals, for example, 46937712 + ... + 46939081.

It is an arithmetic number, because the mean of its divisors is an integer number (9716248179).

Almost surely, 2^64305603205 is an apocalyptic number.

It is an amenable number.

64305603205 is a deficient number, since it is larger than the sum of its proper divisors (13424382227).

64305603205 is a wasteful number, since it uses less digits than its factorization.

64305603205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93876935.

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 64305603205 in words is "sixty-four billion, three hundred five million, six hundred three thousand, two hundred five".