30660536321 has 2 divisors, whose sum is σ = 30660536322. Its totient is φ = 30660536320.

The previous prime is 30660536311. The next prime is 30660536359. The reversal of 30660536321 is 12363506603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18242554225 + 12417982096 = 135065^2 + 111436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30660536321 is a prime.

It is not a weakly prime, because it can be changed into another prime (30660536311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15330268160 + 15330268161.

It is an arithmetic number, because the mean of its divisors is an integer number (15330268161).

Almost surely, 2^30660536321 is an apocalyptic number.

It is an amenable number.

30660536321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30660536321 is an equidigital number, since it uses as much as digits as its factorization.

30660536321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 35.

The spelling of 30660536321 in words is "thirty billion, six hundred sixty million, five hundred thirty-six thousand, three hundred twenty-one".