9551111560 has 64 divisors (see below), whose sum is σ = 22444646400. Its totient is φ = 3651031296.

The previous prime is 9551111551. The next prime is 9551111569. The reversal of 9551111560 is 651111559.

It is an interprime number because it is at equal distance from previous prime (9551111551) and next prime (9551111569).

It is not an unprimeable number, because it can be changed into a prime (9551111569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172622 + ... + 1180738.

It is an arithmetic number, because the mean of its divisors is an integer number (350697600).

Almost surely, 2^9551111560 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 9551111560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11222323200).

9551111560 is an abundant number, since it is smaller than the sum of its proper divisors (12893534840).

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

9551111560 is a wasteful number, since it uses less digits than its factorization.

9551111560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9430 (or 9426 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 34.

The square root of 9551111560 is about 97729.7884986968. The cubic root of 9551111560 is about 2121.7032384422.

The spelling of 9551111560 in words is "nine billion, five hundred fifty-one million, one hundred eleven thousand, five hundred sixty".