9659156056 has 48 divisors (see below), whose sum is σ = 20022458400. Its totient is φ = 4365071040.

The previous prime is 9659156051. The next prime is 9659156057. The reversal of 9659156056 is 6506519569.

It is a super-2 number, since 2×9659156056² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9659155994 and 9659156012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9659156051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138625 + ... + 196303.

It is an arithmetic number, because the mean of its divisors is an integer number (417134550).

Almost surely, 2^9659156056 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 9659156056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10011229200).

9659156056 is an abundant number, since it is smaller than the sum of its proper divisors (10363302344).

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

9659156056 is a wasteful number, since it uses less digits than its factorization.

9659156056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57880 (or 57865 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 52.

The square root of 9659156056 is about 98281.0055707612. The cubic root of 9659156056 is about 2129.6736667138.

The spelling of 9659156056 in words is "nine billion, six hundred fifty-nine million, one hundred fifty-six thousand, fifty-six".