53664533546543 has 2 divisors, whose sum is σ = 53664533546544. Its totient is φ = 53664533546542.

The previous prime is 53664533546419. The next prime is 53664533546641. The reversal of 53664533546543 is 34564533546635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53664533546543 - 2¹⁴ = 53664533530159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53664535546543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26832266773271 + 26832266773272.

It is an arithmetic number, because the mean of its divisors is an integer number (26832266773272).

Almost surely, 2^{53664533546543} is an apocalyptic number.

53664533546543 is a deficient number, since it is larger than the sum of its proper divisors (1).

53664533546543 is an equidigital number, since it uses as much as digits as its factorization.

53664533546543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840000, while the sum is 62.

The spelling of 53664533546543 in words is "fifty-three trillion, six hundred sixty-four billion, five hundred thirty-three million, five hundred forty-six thousand, five hundred forty-three".