30663574561 has 4 divisors (see below), whose sum is σ = 30664130224. Its totient is φ = 30663018900.

The previous prime is 30663574559. The next prime is 30663574603. The reversal of 30663574561 is 16547536603.

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 30663574561 - 2¹ = 30663574559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30663574661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184635 + ... + 308896.

It is an arithmetic number, because the mean of its divisors is an integer number (7666032556).

Almost surely, 2^30663574561 is an apocalyptic number.

It is an amenable number.

30663574561 is a deficient number, since it is larger than the sum of its proper divisors (555663).

30663574561 is an equidigital number, since it uses as much as digits as its factorization.

30663574561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555662.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 30663574561 in words is "thirty billion, six hundred sixty-three million, five hundred seventy-four thousand, five hundred sixty-one".