13155455123326 has 4 divisors (see below), whose sum is σ = 19733182684992. Its totient is φ = 6577727561662.

The previous prime is 13155455123299. The next prime is 13155455123329. The reversal of 13155455123326 is 62332155455131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155455123329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3288863780830 + ... + 3288863780833.

It is an arithmetic number, because the mean of its divisors is an integer number (4933295671248).

Almost surely, 2^{13155455123326} is an apocalyptic number.

13155455123326 is a deficient number, since it is larger than the sum of its proper divisors (6577727561666).

13155455123326 is an equidigital number, since it uses as much as digits as its factorization.

13155455123326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577727561665.

The product of its digits is 1620000, while the sum is 46.

The spelling of 13155455123326 in words is "thirteen trillion, one hundred fifty-five billion, four hundred fifty-five million, one hundred twenty-three thousand, three hundred twenty-six".