9959120712 has 108 divisors (see below), whose sum is σ = 28513009395. Its totient is φ = 3139904736.

The previous prime is 9959120711. The next prime is 9959120713. The reversal of 9959120712 is 2170219599.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (9959120711) and next prime (9959120713).

It can be written as a sum of positive squares in only one way, i.e., 4979560356 + 4979560356 = 70566^2 + 70566^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=70566.

It is not an unprimeable number, because it can be changed into a prime (9959120711) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16088739 + ... + 16089357.

Almost surely, 2^9959120712 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 9959120712

9959120712 is an abundant number, since it is smaller than the sum of its proper divisors (18553888683).

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

9959120712 is a wasteful number, since it uses less digits than its factorization.

9959120712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The square root of 9959120712 is about 99795.3942424198. The cubic root of 9959120712 is about 2151.4949553711.

The spelling of 9959120712 in words is "nine billion, nine hundred fifty-nine million, one hundred twenty thousand, seven hundred twelve".