16713216325 has 24 divisors (see below), whose sum is σ = 22348383848. Its totient is φ = 12325582080.

The previous prime is 16713216319. The next prime is 16713216329. The reversal of 16713216325 is 52361231761.

It can be written as a sum of positive squares in 12 ways, for example, as 2781191169 + 13932025156 = 52737^2 + 118034^2 .

It is not a de Polignac number, because 16713216325 - 2¹¹ = 16713214277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16713216329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212059 + ... + 279991.

Almost surely, 2^16713216325 is an apocalyptic number.

It is an amenable number.

16713216325 is a deficient number, since it is larger than the sum of its proper divisors (5635167523).

16713216325 is a wasteful number, since it uses less digits than its factorization.

16713216325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68713 (or 68708 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The spelling of 16713216325 in words is "sixteen billion, seven hundred thirteen million, two hundred sixteen thousand, three hundred twenty-five".