13220653145526 has 48 divisors (see below), whose sum is σ = 29268073156608. Its totient is φ = 4311077137200.

The previous prime is 13220653145473. The next prime is 13220653145527. The reversal of 13220653145526 is 62554135602231.

13220653145526 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 0 + 65 + 31 + 4 + 552 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220653145527) 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, 1915480 + ... + 5487291.

It is an arithmetic number, because the mean of its divisors is an integer number (609751524096).

Almost surely, 2^{13220653145526} is an apocalyptic number.

13220653145526 is an abundant number, since it is smaller than the sum of its proper divisors (16047420011082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220653145526 is a wasteful number, since it uses less digits than its factorization.

13220653145526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7404937 (or 7404934 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

Adding to 13220653145526 its reverse (62554135602231), we get a palindrome (75774788747757).

The spelling of 13220653145526 in words is "thirteen trillion, two hundred twenty billion, six hundred fifty-three million, one hundred forty-five thousand, five hundred twenty-six".