11471440140 has 72 divisors (see below), whose sum is σ = 34808181408. Its totient is φ = 3058041600.

The previous prime is 11471440103. The next prime is 11471440237. The reversal of 11471440140 is 4104417411.

11471440140 is a `hidden beast` number, since 1 + 14 + 71 + 440 + 140 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652465 + ... + 669815.

It is an arithmetic number, because the mean of its divisors is an integer number (483446964).

Almost surely, 2^11471440140 is an apocalyptic number.

11471440140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11471440140 is an abundant number, since it is smaller than the sum of its proper divisors (23336741268).

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

11471440140 is a wasteful number, since it uses less digits than its factorization.

11471440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21039 (or 21034 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

Adding to 11471440140 its reverse (4104417411), we get a palindrome (15575857551).

The spelling of 11471440140 in words is "eleven billion, four hundred seventy-one million, four hundred forty thousand, one hundred forty".