13155135203155 has 8 divisors (see below), whose sum is σ = 17221267902384. Its totient is φ = 9567371056800.

The previous prime is 13155135203153. The next prime is 13155135203179. The reversal of 13155135203155 is 55130253155131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13155135203155 - 2¹ = 13155135203153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13155135203153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119592138156 + ... + 119592138265.

It is an arithmetic number, because the mean of its divisors is an integer number (2152658487798).

Almost surely, 2^{13155135203155} is an apocalyptic number.

13155135203155 is a deficient number, since it is larger than the sum of its proper divisors (4066132699229).

13155135203155 is a wasteful number, since it uses less digits than its factorization.

13155135203155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239184276437.

The product of its (nonzero) digits is 168750, while the sum is 40.

Adding to 13155135203155 its reverse (55130253155131), we get a palindrome (68285388358286).

The spelling of 13155135203155 in words is "thirteen trillion, one hundred fifty-five billion, one hundred thirty-five million, two hundred three thousand, one hundred fifty-five".