11243145816 has 128 divisors (see below), whose sum is σ = 35732390400. Its totient is φ = 3208740480.

The previous prime is 11243145811. The next prime is 11243145839. The reversal of 11243145816 is 61854134211.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243145811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540111 + ... + 1547393.

It is an arithmetic number, because the mean of its divisors is an integer number (279159300).

Almost surely, 2^11243145816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11243145816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17866195200).

11243145816 is an abundant number, since it is smaller than the sum of its proper divisors (24489244584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11243145816 is a wasteful number, since it uses less digits than its factorization.

11243145816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 8316 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The spelling of 11243145816 in words is "eleven billion, two hundred forty-three million, one hundred forty-five thousand, eight hundred sixteen".