30664450305 has 12 divisors (see below), whose sum is σ = 53151713940. Its totient is φ = 16354373472.

The previous prime is 30664450277. The next prime is 30664450309. The reversal of 30664450305 is 50305446603.

30664450305 is a `hidden beast` number, since 3 + 0 + 6 + 644 + 5 + 0 + 3 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8418429504 + 22246020801 = 91752^2 + 149151^2 .

It is not a de Polignac number, because 30664450305 - 2⁷ = 30664450177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30664450305.

It is not an unprimeable number, because it can be changed into a prime (30664450309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340716070 + ... + 340716159.

It is an arithmetic number, because the mean of its divisors is an integer number (4429309495).

Almost surely, 2^30664450305 is an apocalyptic number.

It is an amenable number.

30664450305 is a deficient number, since it is larger than the sum of its proper divisors (22487263635).

30664450305 is a wasteful number, since it uses less digits than its factorization.

30664450305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681432240 (or 681432237 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 30664450305 its reverse (50305446603), we get a palindrome (80969896908).

The spelling of 30664450305 in words is "thirty billion, six hundred sixty-four million, four hundred fifty thousand, three hundred five".