13326126157 has 2 divisors, whose sum is σ = 13326126158. Its totient is φ = 13326126156.

The previous prime is 13326126119. The next prime is 13326126161. The reversal of 13326126157 is 75162162331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12173591556 + 1152534601 = 110334^2 + 33949^2 .

It is a cyclic number.

It is not a de Polignac number, because 13326126157 - 2²³ = 13317737549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13326126757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6663063078 + 6663063079.

It is an arithmetic number, because the mean of its divisors is an integer number (6663063079).

Almost surely, 2^13326126157 is an apocalyptic number.

It is an amenable number.

13326126157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13326126157 is an equidigital number, since it uses as much as digits as its factorization.

13326126157 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13326126157 its reverse (75162162331), we get a palindrome (88488288488).

The spelling of 13326126157 in words is "thirteen billion, three hundred twenty-six million, one hundred twenty-six thousand, one hundred fifty-seven".