11155243454 has 8 divisors (see below), whose sum is σ = 16733330328. Its totient is φ = 5577466680.

The previous prime is 11155243441. The next prime is 11155243459. The reversal of 11155243454 is 45434255111.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11155243459) 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, 64304 + ... + 162620.

It is an arithmetic number, because the mean of its divisors is an integer number (2091666291).

Almost surely, 2^11155243454 is an apocalyptic number.

11155243454 is a deficient number, since it is larger than the sum of its proper divisors (5578086874).

11155243454 is an equidigital number, since it uses as much as digits as its factorization.

11155243454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155050.

The product of its digits is 48000, while the sum is 35.

Adding to 11155243454 its reverse (45434255111), we get a palindrome (56589498565).

The spelling of 11155243454 in words is "eleven billion, one hundred fifty-five million, two hundred forty-three thousand, four hundred fifty-four".