189115655155 has 32 divisors (see below), whose sum is σ = 274254962688. Its totient is φ = 122435193600.

The previous prime is 189115655111. The next prime is 189115655161. The reversal of 189115655155 is 551556511981.

It is a happy number.

189115655155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189115655155 - 2¹¹ = 189115653107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2081127 + ... + 2170096.

It is an arithmetic number, because the mean of its divisors is an integer number (8570467584).

Almost surely, 2^189115655155 is an apocalyptic number.

189115655155 is a deficient number, since it is larger than the sum of its proper divisors (85139307533).

189115655155 is a wasteful number, since it uses less digits than its factorization.

189115655155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251307.

The product of its digits is 1350000, while the sum is 52.

The spelling of 189115655155 in words is "one hundred eighty-nine billion, one hundred fifteen million, six hundred fifty-five thousand, one hundred fifty-five".