16217316375473 has 2 divisors, whose sum is σ = 16217316375474. Its totient is φ = 16217316375472.

The previous prime is 16217316375457. The next prime is 16217316375521. The reversal of 16217316375473 is 37457361371261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16151774231329 + 65542144144 = 4018927^2 + 256012^2 .

It is a cyclic number.

It is not a de Polignac number, because 16217316375473 - 2⁴ = 16217316375457 is a prime.

It is not a weakly prime, because it can be changed into another prime (16217318375473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108658187736 + 8108658187737.

It is an arithmetic number, because the mean of its divisors is an integer number (8108658187737).

Almost surely, 2^{16217316375473} is an apocalyptic number.

It is an amenable number.

16217316375473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16217316375473 is an equidigital number, since it uses as much as digits as its factorization.

16217316375473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 56.

The spelling of 16217316375473 in words is "sixteen trillion, two hundred seventeen billion, three hundred sixteen million, three hundred seventy-five thousand, four hundred seventy-three".