11566144340 has 24 divisors (see below), whose sum is σ = 24651426912. Its totient is φ = 4557405600.

The previous prime is 11566144301. The next prime is 11566144393. The reversal of 11566144340 is 4344166511.

11566144340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11566144340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314386 + ... + 4317065.

It is an arithmetic number, because the mean of its divisors is an integer number (1027142788).

Almost surely, 2^11566144340 is an apocalyptic number.

11566144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11566144340 is an abundant number, since it is smaller than the sum of its proper divisors (13085282572).

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

11566144340 is a wasteful number, since it uses less digits than its factorization.

11566144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8631527 (or 8631525 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 11566144340 in words is "eleven billion, five hundred sixty-six million, one hundred forty-four thousand, three hundred forty".