11545356155 has 4 divisors (see below), whose sum is σ = 13854427392. Its totient is φ = 9236284920.

The previous prime is 11545356143. The next prime is 11545356203. The reversal of 11545356155 is 55165354511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55165354511 = 19867 ⋅2776733.

It is not a de Polignac number, because 11545356155 - 2¹⁰ = 11545355131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154535611 + ... + 1154535620.

It is an arithmetic number, because the mean of its divisors is an integer number (3463606848).

Almost surely, 2^11545356155 is an apocalyptic number.

11545356155 is a deficient number, since it is larger than the sum of its proper divisors (2309071237).

11545356155 is an equidigital number, since it uses as much as digits as its factorization.

11545356155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309071236.

The product of its digits is 225000, while the sum is 41.

The spelling of 11545356155 in words is "eleven billion, five hundred forty-five million, three hundred fifty-six thousand, one hundred fifty-five".