21160336360633 has 2 divisors, whose sum is σ = 21160336360634. Its totient is φ = 21160336360632.

The previous prime is 21160336360627. The next prime is 21160336360663. The reversal of 21160336360633 is 33606363306112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12645221344144 + 8515115016489 = 3556012^2 + 2918067^2 .

It is a cyclic number.

It is not a de Polignac number, because 21160336360633 - 2⁵ = 21160336360601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21160336360633.

It is not a weakly prime, because it can be changed into another prime (21160336360663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580168180316 + 10580168180317.

It is an arithmetic number, because the mean of its divisors is an integer number (10580168180317).

Almost surely, 2^{21160336360633} is an apocalyptic number.

It is an amenable number.

21160336360633 is a deficient number, since it is larger than the sum of its proper divisors (1).

21160336360633 is an equidigital number, since it uses as much as digits as its factorization.

21160336360633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 43.

Adding to 21160336360633 its reverse (33606363306112), we get a palindrome (54766699666745).

The spelling of 21160336360633 in words is "twenty-one trillion, one hundred sixty billion, three hundred thirty-six million, three hundred sixty thousand, six hundred thirty-three".