9644955156480 has 720 divisors, whose sum is σ = 36667776612096. Its totient is φ = 2157529006080.

The previous prime is 9644955156367. The next prime is 9644955156517. The reversal of 9644955156480 is 846515594469.

It is a super-3 number, since 3×9644955156480³ (a number of 40 digits) contains 333 as substring.

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, 565976760 + ... + 565993800.

Almost surely, 2^{9644955156480} 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 9644955156480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18333888306048).

9644955156480 is an abundant number, since it is smaller than the sum of its proper divisors (27022821455616).

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

9644955156480 is a wasteful number, since it uses less digits than its factorization.

9644955156480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17138 (or 17105 counting only the distinct ones).

The product of its (nonzero) digits is 186624000, while the sum is 66.

The spelling of 9644955156480 in words is "nine trillion, six hundred forty-four billion, nine hundred fifty-five million, one hundred fifty-six thousand, four hundred eighty".