616128219213329 has 2 divisors, whose sum is σ = 616128219213330. Its totient is φ = 616128219213328.

The previous prime is 616128219213319. The next prime is 616128219213343. The reversal of 616128219213329 is 923312912821616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333302603756929 + 282825615456400 = 18256577^2 + 16817420^2 .

It is a cyclic number.

It is not a de Polignac number, because 616128219213329 - 2¹² = 616128219209233 is a prime.

It is a super-2 number, since 2×616128219213329² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (616128219213319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308064109606664 + 308064109606665.

It is an arithmetic number, because the mean of its divisors is an integer number (308064109606665).

Almost surely, 2^{616128219213329} is an apocalyptic number.

It is an amenable number.

616128219213329 is a deficient number, since it is larger than the sum of its proper divisors (1).

616128219213329 is an equidigital number, since it uses as much as digits as its factorization.

616128219213329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 56.

The spelling of 616128219213329 in words is "six hundred sixteen trillion, one hundred twenty-eight billion, two hundred nineteen million, two hundred thirteen thousand, three hundred twenty-nine".