54699966604693 has 2 divisors, whose sum is σ = 54699966604694. Its totient is φ = 54699966604692.

The previous prime is 54699966604609. The next prime is 54699966604733. The reversal of 54699966604693 is 39640666999645.

54699966604693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44130751037604 + 10569215567089 = 6643098^2 + 3251033^2 .

It is a cyclic number.

It is not a de Polignac number, because 54699966604693 - 2⁹ = 54699966604181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54699966602693) 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, 27349983302346 + 27349983302347.

It is an arithmetic number, because the mean of its divisors is an integer number (27349983302347).

Almost surely, 2^{54699966604693} is an apocalyptic number.

It is an amenable number.

54699966604693 is a deficient number, since it is larger than the sum of its proper divisors (1).

54699966604693 is an equidigital number, since it uses as much as digits as its factorization.

54699966604693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12244400640, while the sum is 82.

The spelling of 54699966604693 in words is "fifty-four trillion, six hundred ninety-nine billion, nine hundred sixty-six million, six hundred four thousand, six hundred ninety-three".