11152543555 has 4 divisors (see below), whose sum is σ = 13383052272. Its totient is φ = 8922034840.

The previous prime is 11152543547. The next prime is 11152543559. The reversal of 11152543555 is 55534525111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11152543555 - 2³ = 11152543547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11152543559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115254351 + ... + 1115254360.

It is an arithmetic number, because the mean of its divisors is an integer number (3345763068).

Almost surely, 2^11152543555 is an apocalyptic number.

11152543555 is a deficient number, since it is larger than the sum of its proper divisors (2230508717).

11152543555 is an equidigital number, since it uses as much as digits as its factorization.

11152543555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230508716.

The product of its digits is 75000, while the sum is 37.

The spelling of 11152543555 in words is "eleven billion, one hundred fifty-two million, five hundred forty-three thousand, five hundred fifty-five".