216701375663 has 2 divisors, whose sum is σ = 216701375664. Its totient is φ = 216701375662.

The previous prime is 216701375599. The next prime is 216701375749. The reversal of 216701375663 is 366573107612.

216701375663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216701375663 - 2⁶ = 216701375599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216701365663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108350687831 + 108350687832.

It is an arithmetic number, because the mean of its divisors is an integer number (108350687832).

Almost surely, 2^216701375663 is an apocalyptic number.

216701375663 is a deficient number, since it is larger than the sum of its proper divisors (1).

216701375663 is an equidigital number, since it uses as much as digits as its factorization.

216701375663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 216701375663 in words is "two hundred sixteen billion, seven hundred one million, three hundred seventy-five thousand, six hundred sixty-three".