9666476296920 has 192 divisors, whose sum is σ = 33270996227040. Its totient is φ = 2425589452800.

The previous prime is 9666476296871. The next prime is 9666476296927. The reversal of 9666476296920 is 296926746669.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9666476296927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29586855 + ... + 29911785.

Almost surely, 2^{9666476296920} is an apocalyptic number.

9666476296920 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 9666476296920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16635498113520).

9666476296920 is an abundant number, since it is smaller than the sum of its proper divisors (23604519930120).

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

9666476296920 is a wasteful number, since it uses less digits than its factorization.

9666476296920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329826 (or 329819 counting only the distinct ones).

The product of its (nonzero) digits is 634894848, while the sum is 72.

The spelling of 9666476296920 in words is "nine trillion, six hundred sixty-six billion, four hundred seventy-six million, two hundred ninety-six thousand, nine hundred twenty".