216506928119 has 2 divisors, whose sum is σ = 216506928120. Its totient is φ = 216506928118.

The previous prime is 216506928107. The next prime is 216506928151. The reversal of 216506928119 is 911829605612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216506928119 - 2²⁰ = 216505879543 is a prime.

It is a super-2 number, since 2×216506928119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216506928179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108253464059 + 108253464060.

It is an arithmetic number, because the mean of its divisors is an integer number (108253464060).

Almost surely, 2^216506928119 is an apocalyptic number.

216506928119 is a deficient number, since it is larger than the sum of its proper divisors (1).

216506928119 is an equidigital number, since it uses as much as digits as its factorization.

216506928119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 216506928119 in words is "two hundred sixteen billion, five hundred six million, nine hundred twenty-eight thousand, one hundred nineteen".