13220653145527 has 2 divisors, whose sum is σ = 13220653145528. Its totient is φ = 13220653145526.

The previous prime is 13220653145473. The next prime is 13220653145681. The reversal of 13220653145527 is 72554135602231.

It is a happy number.

13220653145527 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13220653145527 - 2¹⁵ = 13220653112759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13220663145527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610326572763 + 6610326572764.

It is an arithmetic number, because the mean of its divisors is an integer number (6610326572764).

Almost surely, 2^{13220653145527} is an apocalyptic number.

13220653145527 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220653145527 is an equidigital number, since it uses as much as digits as its factorization.

13220653145527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 46.

Adding to 13220653145527 its reverse (72554135602231), we get a palindrome (85774788747758).

The spelling of 13220653145527 in words is "thirteen trillion, two hundred twenty billion, six hundred fifty-three million, one hundred forty-five thousand, five hundred twenty-seven".