67755455563 has 2 divisors, whose sum is σ = 67755455564. Its totient is φ = 67755455562.

The previous prime is 67755455507. The next prime is 67755455591. The reversal of 67755455563 is 36555455776.

It is a happy number.

67755455563 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67755455563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67755455498 and 67755455507.

It is not a weakly prime, because it can be changed into another prime (67755455503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33877727781 + 33877727782.

It is an arithmetic number, because the mean of its divisors is an integer number (33877727782).

Almost surely, 2^67755455563 is an apocalyptic number.

67755455563 is a deficient number, since it is larger than the sum of its proper divisors (1).

67755455563 is an equidigital number, since it uses as much as digits as its factorization.

67755455563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150000, while the sum is 58.

The spelling of 67755455563 in words is "sixty-seven billion, seven hundred fifty-five million, four hundred fifty-five thousand, five hundred sixty-three".