54643660063 has 2 divisors, whose sum is σ = 54643660064. Its totient is φ = 54643660062.

The previous prime is 54643660007. The next prime is 54643660067. The reversal of 54643660063 is 36006634645.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54643660063 - 2¹⁷ = 54643528991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54643660067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27321830031 + 27321830032.

It is an arithmetic number, because the mean of its divisors is an integer number (27321830032).

Almost surely, 2^54643660063 is an apocalyptic number.

54643660063 is a deficient number, since it is larger than the sum of its proper divisors (1).

54643660063 is an equidigital number, since it uses as much as digits as its factorization.

54643660063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 54643660063 in words is "fifty-four billion, six hundred forty-three million, six hundred sixty thousand, sixty-three".