13263303655 has 32 divisors (see below), whose sum is σ = 18854719488. Its totient is φ = 8764761600.

The previous prime is 13263303653. The next prime is 13263303659. The reversal of 13263303655 is 55630336231.

It is not a de Polignac number, because 13263303655 - 2¹ = 13263303653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13263303653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236124 + ... + 286846.

It is an arithmetic number, because the mean of its divisors is an integer number (589209984).

Almost surely, 2^13263303655 is an apocalyptic number.

13263303655 is a deficient number, since it is larger than the sum of its proper divisors (5591415833).

13263303655 is a wasteful number, since it uses less digits than its factorization.

13263303655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51007.

The product of its (nonzero) digits is 145800, while the sum is 37.

Adding to 13263303655 its reverse (55630336231), we get a palindrome (68893639886).

The spelling of 13263303655 in words is "thirteen billion, two hundred sixty-three million, three hundred three thousand, six hundred fifty-five".