9943105536 has 720 divisors, whose sum is σ = 38376710400. Its totient is φ = 2484338688.

The previous prime is 9943105519. The next prime is 9943105547. The reversal of 9943105536 is 6355013499.

9943105536 is a `hidden beast` number, since 9 + 9 + 4 + 3 + 105 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9943105491 and 9943105500.

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, 523321335 + ... + 523321353.

Almost surely, 2^9943105536 is an apocalyptic number.

9943105536 is a gapful number since it is divisible by the number (96) 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 9943105536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19188355200).

9943105536 is an abundant number, since it is smaller than the sum of its proper divisors (28433604864).

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

9943105536 is a wasteful number, since it uses less digits than its factorization.

9943105536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 9943105536 is about 99715.1219023474. The cubic root of 9943105536 is about 2150.3410698136.

The spelling of 9943105536 in words is "nine billion, nine hundred forty-three million, one hundred five thousand, five hundred thirty-six".