9855615232 has 72 divisors (see below), whose sum is σ = 20402063360. Its totient is φ = 4746608640.

The previous prime is 9855615221. The next prime is 9855615233. The reversal of 9855615232 is 2325165589.

It is a super-3 number, since 3×9855615232³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9855615233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766944 + ... + 1772512.

Almost surely, 2^9855615232 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 9855615232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10201031680).

9855615232 is an abundant number, since it is smaller than the sum of its proper divisors (10546448128).

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

9855615232 is a wasteful number, since it uses less digits than its factorization.

9855615232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839 (or 5825 counting only the distinct ones).

The product of its digits is 648000, while the sum is 46.

The square root of 9855615232 is about 99275.4513059498. The cubic root of 9855615232 is about 2144.0154636146.

The spelling of 9855615232 in words is "nine billion, eight hundred fifty-five million, six hundred fifteen thousand, two hundred thirty-two".