11456445440 has 88 divisors (see below), whose sum is σ = 29980558512. Its totient is φ = 4165959680.

The previous prime is 11456445373. The next prime is 11456445479. The reversal of 11456445440 is 4454465411.

It is a tau number, because it is divible by the number of its divisors (88).

It is a junction number, because it is equal to n+sod(n) for n = 11456445394 and 11456445403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45389 + ... + 158028.

Almost surely, 2^11456445440 is an apocalyptic number.

11456445440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11456445440 is an abundant number, since it is smaller than the sum of its proper divisors (18524113072).

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

11456445440 is a wasteful number, since it uses less digits than its factorization.

11456445440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203453 (or 203435 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 11456445440 in words is "eleven billion, four hundred fifty-six million, four hundred forty-five thousand, four hundred forty".