9561455120 has 320 divisors, whose sum is σ = 28283904000. Its totient is φ = 2930577408.

The previous prime is 9561455119. The next prime is 9561455131. The reversal of 9561455120 is 215541659.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21779861 + ... + 21780299.

It is an arithmetic number, because the mean of its divisors is an integer number (88387200).

Almost surely, 2^9561455120 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 9561455120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14141952000).

9561455120 is an abundant number, since it is smaller than the sum of its proper divisors (18722448880).

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

9561455120 is a wasteful number, since it uses less digits than its factorization.

9561455120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 9561455120 is about 97782.6933562376. The cubic root of 9561455120 is about 2122.4688752342.

Adding to 9561455120 its reverse (215541659), we get a palindrome (9776996779).

The spelling of 9561455120 in words is "nine billion, five hundred sixty-one million, four hundred fifty-five thousand, one hundred twenty".