13805560944 has 240 divisors, whose sum is σ = 46378142720. Its totient is φ = 3893909760.

The previous prime is 13805560939. The next prime is 13805560969. The reversal of 13805560944 is 44906550831.

13805560944 is a `hidden beast` number, since 1 + 3 + 8 + 0 + 556 + 0 + 94 + 4 = 666.

It is a super-2 number, since 2×13805560944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13805560944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2146854 + ... + 2153274.

Almost surely, 2^13805560944 is an apocalyptic number.

13805560944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13805560944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23189071360).

13805560944 is an abundant number, since it is smaller than the sum of its proper divisors (32572581776).

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

13805560944 is an equidigital number, since it uses as much as digits as its factorization.

13805560944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530 (or 6512 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 13805560944 in words is "thirteen billion, eight hundred five million, five hundred sixty thousand, nine hundred forty-four".