11554965440 has 56 divisors (see below), whose sum is σ = 27538448352. Its totient is φ = 4618091520.

The previous prime is 11554965437. The next prime is 11554965449. The reversal of 11554965440 is 4456945511.

It is a junction number, because it is equal to n+sod(n) for n = 11554965391 and 11554965400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554965449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381245 + ... + 410435.

Almost surely, 2^11554965440 is an apocalyptic number.

11554965440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11554965440 is an abundant number, since it is smaller than the sum of its proper divisors (15983482912).

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

11554965440 is a wasteful number, since it uses less digits than its factorization.

11554965440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30445 (or 30435 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 11554965440 in words is "eleven billion, five hundred fifty-four million, nine hundred sixty-five thousand, four hundred forty".