216754155337207 has 2 divisors, whose sum is σ = 216754155337208. Its totient is φ = 216754155337206.

The previous prime is 216754155337157. The next prime is 216754155337253. The reversal of 216754155337207 is 702733551457612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216754155337207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216754155367207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108377077668603 + 108377077668604.

It is an arithmetic number, because the mean of its divisors is an integer number (108377077668604).

Almost surely, 2^{216754155337207} is an apocalyptic number.

216754155337207 is a deficient number, since it is larger than the sum of its proper divisors (1).

216754155337207 is an equidigital number, since it uses as much as digits as its factorization.

216754155337207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37044000, while the sum is 58.

The spelling of 216754155337207 in words is "two hundred sixteen trillion, seven hundred fifty-four billion, one hundred fifty-five million, three hundred thirty-seven thousand, two hundred seven".