9568666015920 has 240 divisors, whose sum is σ = 35069285770272. Its totient is φ = 2318804951040.

The previous prime is 9568666015879. The next prime is 9568666015949. The reversal of 9568666015920 is 295106668659.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20976184 + ... + 21427496.

Almost surely, 2^{9568666015920} is an apocalyptic number.

9568666015920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9568666015920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17534642885136).

9568666015920 is an abundant number, since it is smaller than the sum of its proper divisors (25500619754352).

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

9568666015920 is a wasteful number, since it uses less digits than its factorization.

9568666015920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454020 (or 454011 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 63.

The spelling of 9568666015920 in words is "nine trillion, five hundred sixty-eight billion, six hundred sixty-six million, fifteen thousand, nine hundred twenty".