16023417281 has 2 divisors, whose sum is σ = 16023417282. Its totient is φ = 16023417280.

The previous prime is 16023417233. The next prime is 16023417317. The reversal of 16023417281 is 18271432061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10626311056 + 5397106225 = 103084^2 + 73465^2 .

It is a cyclic number.

It is not a de Polignac number, because 16023417281 - 2⁶ = 16023417217 is a prime.

It is a super-2 number, since 2×16023417281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16023417181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8011708640 + 8011708641.

It is an arithmetic number, because the mean of its divisors is an integer number (8011708641).

Almost surely, 2^16023417281 is an apocalyptic number.

It is an amenable number.

16023417281 is a deficient number, since it is larger than the sum of its proper divisors (1).

16023417281 is an equidigital number, since it uses as much as digits as its factorization.

16023417281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 16023417281 in words is "sixteen billion, twenty-three million, four hundred seventeen thousand, two hundred eighty-one".