53310065641661 has 2 divisors, whose sum is σ = 53310065641662. Its totient is φ = 53310065641660.

The previous prime is 53310065641607. The next prime is 53310065641739. The reversal of 53310065641661 is 16614656001335.

53310065641661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49876434405625 + 3433631236036 = 7062325^2 + 1853006^2 .

It is a cyclic number.

It is not a de Polignac number, because 53310065641661 - 2³⁸ = 53035187734717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53310065641361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26655032820830 + 26655032820831.

It is an arithmetic number, because the mean of its divisors is an integer number (26655032820831).

Almost surely, 2^{53310065641661} is an apocalyptic number.

It is an amenable number.

53310065641661 is a deficient number, since it is larger than the sum of its proper divisors (1).

53310065641661 is an equidigital number, since it uses as much as digits as its factorization.

53310065641661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 53310065641661 in words is "fifty-three trillion, three hundred ten billion, sixty-five million, six hundred forty-one thousand, six hundred sixty-one".