11456983864240 has 20 divisors (see below), whose sum is σ = 26637487484544. Its totient is φ = 4582793545664.

The previous prime is 11456983864229. The next prime is 11456983864241. The reversal of 11456983864240 is 4246838965411.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (11456983864241) 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, 71606149072 + ... + 71606149231.

Almost surely, 2^{11456983864240} is an apocalyptic number.

11456983864240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11456983864240 is an abundant number, since it is smaller than the sum of its proper divisors (15180503620304).

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

11456983864240 is a wasteful number, since it uses less digits than its factorization.

11456983864240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143212298316 (or 143212298310 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 11456983864240 in words is "eleven trillion, four hundred fifty-six billion, nine hundred eighty-three million, eight hundred sixty-four thousand, two hundred forty".