216688739202959 has 2 divisors, whose sum is σ = 216688739202960. Its totient is φ = 216688739202958.

The previous prime is 216688739202941. The next prime is 216688739202977. The reversal of 216688739202959 is 959202937886612.

It is a balanced prime because it is at equal distance from previous prime (216688739202941) and next prime (216688739202977).

It is a cyclic number.

It is not a de Polignac number, because 216688739202959 - 2³⁶ = 216620019726223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216688739202959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216688739102959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108344369601479 + 108344369601480.

It is an arithmetic number, because the mean of its divisors is an integer number (108344369601480).

Almost surely, 2^{216688739202959} is an apocalyptic number.

216688739202959 is a deficient number, since it is larger than the sum of its proper divisors (1).

216688739202959 is an equidigital number, since it uses as much as digits as its factorization.

216688739202959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1410877440, while the sum is 77.

The spelling of 216688739202959 in words is "two hundred sixteen trillion, six hundred eighty-eight billion, seven hundred thirty-nine million, two hundred two thousand, nine hundred fifty-nine".