13320013655 has 16 divisors (see below), whose sum is σ = 18226119744. Its totient is φ = 9257710080.

The previous prime is 13320013643. The next prime is 13320013711. The reversal of 13320013655 is 55631002331.

It is a de Polignac number, because none of the positive numbers 2^k-13320013655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6026051 + ... + 6028260.

It is an arithmetic number, because the mean of its divisors is an integer number (1139132484).

Almost surely, 2^13320013655 is an apocalyptic number.

13320013655 is a deficient number, since it is larger than the sum of its proper divisors (4906106089).

13320013655 is a wasteful number, since it uses less digits than its factorization.

13320013655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12054346.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 13320013655 its reverse (55631002331), we get a palindrome (68951015986).

The spelling of 13320013655 in words is "thirteen billion, three hundred twenty million, thirteen thousand, six hundred fifty-five".