9961706650 has 48 divisors (see below), whose sum is σ = 22290269760. Its totient is φ = 3235680000.

The previous prime is 9961706647. The next prime is 9961706717. The reversal of 9961706650 is 566071699.

It is a junction number, because it is equal to n+sod(n) for n = 9961706594 and 9961706603.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742351 + ... + 755650.

It is an arithmetic number, because the mean of its divisors is an integer number (464380620).

Almost surely, 2^9961706650 is an apocalyptic number.

9961706650 is an abundant number, since it is smaller than the sum of its proper divisors (12328563110).

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

9961706650 is a wasteful number, since it uses less digits than its factorization.

9961706650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498039 (or 1498034 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 9961706650 is about 99808.3496006221. The cubic root of 9961706650 is about 2151.6811549112.

The spelling of 9961706650 in words is "nine billion, nine hundred sixty-one million, seven hundred six thousand, six hundred fifty".