475623216665563 has 2 divisors, whose sum is σ = 475623216665564. Its totient is φ = 475623216665562.

The previous prime is 475623216665549. The next prime is 475623216665621. The reversal of 475623216665563 is 365566612326574.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475623216665563 is a prime.

It is not a weakly prime, because it can be changed into another prime (475623216665543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237811608332781 + 237811608332782.

It is an arithmetic number, because the mean of its divisors is an integer number (237811608332782).

Almost surely, 2^{475623216665563} is an apocalyptic number.

475623216665563 is a deficient number, since it is larger than the sum of its proper divisors (1).

475623216665563 is an equidigital number, since it uses as much as digits as its factorization.

475623216665563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776000, while the sum is 67.

The spelling of 475623216665563 in words is "four hundred seventy-five trillion, six hundred twenty-three billion, two hundred sixteen million, six hundred sixty-five thousand, five hundred sixty-three".