53664533546641 has 2 divisors, whose sum is σ = 53664533546642. Its totient is φ = 53664533546640.

The previous prime is 53664533546543. The next prime is 53664533546669. The reversal of 53664533546641 is 14664533546635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41242405100625 + 12422128446016 = 6422025^2 + 3524504^2 .

It is a cyclic number.

It is not a de Polignac number, because 53664533546641 - 2³³ = 53655943612049 is a prime.

It is a super-2 number, since 2×53664533546641² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53664533546641.

It is not a weakly prime, because it can be changed into another prime (53664533540641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832266773320 + 26832266773321.

It is an arithmetic number, because the mean of its divisors is an integer number (26832266773321).

Almost surely, 2^{53664533546641} is an apocalyptic number.

It is an amenable number.

53664533546641 is a deficient number, since it is larger than the sum of its proper divisors (1).

53664533546641 is an equidigital number, since it uses as much as digits as its factorization.

53664533546641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936000, while the sum is 61.

The spelling of 53664533546641 in words is "fifty-three trillion, six hundred sixty-four billion, five hundred thirty-three million, five hundred forty-six thousand, six hundred forty-one".