13216753237 has 2 divisors, whose sum is σ = 13216753238. Its totient is φ = 13216753236.

The previous prime is 13216753177. The next prime is 13216753247. The reversal of 13216753237 is 73235761231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12987109521 + 229643716 = 113961^2 + 15154^2 .

It is a cyclic number.

It is not a de Polignac number, because 13216753237 - 2¹⁵ = 13216720469 is a prime.

It is a super-2 number, since 2×13216753237² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13216753237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216753247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608376618 + 6608376619.

It is an arithmetic number, because the mean of its divisors is an integer number (6608376619).

Almost surely, 2^13216753237 is an apocalyptic number.

It is an amenable number.

13216753237 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216753237 is an equidigital number, since it uses as much as digits as its factorization.

13216753237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 40.

The spelling of 13216753237 in words is "thirteen billion, two hundred sixteen million, seven hundred fifty-three thousand, two hundred thirty-seven".