16217248241 has 4 divisors (see below), whose sum is σ = 16219965684. Its totient is φ = 16214530800.

The previous prime is 16217248219. The next prime is 16217248247. The reversal of 16217248241 is 14284271261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1283430625 + 14933817616 = 35825^2 + 122204^2 .

It is a cyclic number.

It is not a de Polignac number, because 16217248241 - 2¹⁴ = 16217231857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16217248195 and 16217248204.

It is not an unprimeable number, because it can be changed into a prime (16217248247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349750 + ... + 1361711.

It is an arithmetic number, because the mean of its divisors is an integer number (4054991421).

Almost surely, 2^16217248241 is an apocalyptic number.

It is an amenable number.

16217248241 is a deficient number, since it is larger than the sum of its proper divisors (2717443).

16217248241 is an equidigital number, since it uses as much as digits as its factorization.

16217248241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717442.

The product of its digits is 43008, while the sum is 38.

The spelling of 16217248241 in words is "sixteen billion, two hundred seventeen million, two hundred forty-eight thousand, two hundred forty-one".