9956722943232 has 1440 divisors, whose sum is σ = 35321191234560. Its totient is φ = 2760482488320.

The previous prime is 9956722943231. The next prime is 9956722943239. The reversal of 9956722943232 is 2323492276599.

9956722943232 is a `hidden beast` number, since 9 + 9 + 567 + 2 + 2 + 9 + 4 + 32 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 9956722943232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956722943231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 15484794303 + ... + 15484794945.

It is an arithmetic number, because the mean of its divisors is an integer number (24528605024).

Almost surely, 2^{9956722943232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9956722943232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17660595617280).

9956722943232 is an abundant number, since it is smaller than the sum of its proper divisors (25364468291328).

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

9956722943232 is a wasteful number, since it uses less digits than its factorization.

9956722943232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 818 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 63.

The spelling of 9956722943232 in words is "nine trillion, nine hundred fifty-six billion, seven hundred twenty-two million, nine hundred forty-three thousand, two hundred thirty-two".