9961176064 has 44 divisors (see below), whose sum is σ = 22757301424. Its totient is φ = 4269072384.

The previous prime is 9961176031. The next prime is 9961176077. The reversal of 9961176064 is 4606711699.

It is a junction number, because it is equal to n+sod(n) for n = 9961175999 and 9961176017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687669 + ... + 702004.

It is an arithmetic number, because the mean of its divisors is an integer number (517211396).

Almost surely, 2^9961176064 is an apocalyptic number.

It is an amenable number.

9961176064 is an abundant number, since it is smaller than the sum of its proper divisors (12796125360).

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

9961176064 is a wasteful number, since it uses less digits than its factorization.

9961176064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389700 (or 1389682 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 9961176064 is about 99805.6915411140. The cubic root of 9961176064 is about 2151.6429528839.

The spelling of 9961176064 in words is "nine billion, nine hundred sixty-one million, one hundred seventy-six thousand, sixty-four".