13155545111 has 8 divisors (see below), whose sum is σ = 13216866624. Its totient is φ = 13094265600.

The previous prime is 13155545099. The next prime is 13155545159. The reversal of 13155545111 is 11154555131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13155545111 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 (13155545171) 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, 740786 + ... + 758336.

It is an arithmetic number, because the mean of its divisors is an integer number (1652108328).

Almost surely, 2^13155545111 is an apocalyptic number.

13155545111 is a deficient number, since it is larger than the sum of its proper divisors (61321513).

13155545111 is a wasteful number, since it uses less digits than its factorization.

13155545111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21001.

The product of its digits is 7500, while the sum is 32.

The spelling of 13155545111 in words is "thirteen billion, one hundred fifty-five million, five hundred forty-five thousand, one hundred eleven".