11538455155 has 8 divisors (see below), whose sum is σ = 13866422832. Its totient is φ = 9217246368.

The previous prime is 11538455113. The next prime is 11538455171. The reversal of 11538455155 is 55155483511.

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

It is a cyclic number.

It is not a de Polignac number, because 11538455155 - 2¹¹ = 11538453107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685964 + ... + 1692793.

It is an arithmetic number, because the mean of its divisors is an integer number (1733302854).

Almost surely, 2^11538455155 is an apocalyptic number.

11538455155 is a deficient number, since it is larger than the sum of its proper divisors (2327967677).

11538455155 is an equidigital number, since it uses as much as digits as its factorization.

11538455155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379445.

The product of its digits is 300000, while the sum is 43.

The spelling of 11538455155 in words is "eleven billion, five hundred thirty-eight million, four hundred fifty-five thousand, one hundred fifty-five".