9955856112552 has 512 divisors, whose sum is σ = 34613858304000. Its totient is φ = 2585648148480.

The previous prime is 9955856112551. The next prime is 9955856112599. The reversal of 9955856112552 is 2552116585599.

It is a happy number.

9955856112552 is a `hidden beast` number, since 9 + 9 + 5 + 5 + 8 + 5 + 61 + 12 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 9955856112552.

It is not an unprimeable number, because it can be changed into a prime (9955856112551) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 405571143 + ... + 405595689.

It is an arithmetic number, because the mean of its divisors is an integer number (67605192000).

Almost surely, 2^{9955856112552} 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 9955856112552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17306929152000).

9955856112552 is an abundant number, since it is smaller than the sum of its proper divisors (24658002191448).

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

9955856112552 is a wasteful number, since it uses less digits than its factorization.

9955856112552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25126 (or 25116 counting only the distinct ones).

The product of its digits is 48600000, while the sum is 63.

The spelling of 9955856112552 in words is "nine trillion, nine hundred fifty-five billion, eight hundred fifty-six million, one hundred twelve thousand, five hundred fifty-two".