9955976368 has 80 divisors (see below), whose sum is σ = 21554176000. Its totient is φ = 4423921920.

The previous prime is 9955976363. The next prime is 9955976369. The reversal of 9955976368 is 8636795599.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9955976363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279273 + ... + 1287031.

It is an arithmetic number, because the mean of its divisors is an integer number (269427200).

Almost surely, 2^9955976368 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 9955976368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10777088000).

9955976368 is an abundant number, since it is smaller than the sum of its proper divisors (11598199632).

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

9955976368 is a wasteful number, since it uses less digits than its factorization.

9955976368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010 (or 8004 counting only the distinct ones).

The product of its digits is 110224800, while the sum is 67.

The square root of 9955976368 is about 99779.6390452481. The cubic root of 9955976368 is about 2151.2685045783.

The spelling of 9955976368 in words is "nine billion, nine hundred fifty-five million, nine hundred seventy-six thousand, three hundred sixty-eight".