9909000156 has 96 divisors (see below), whose sum is σ = 26714419200. Its totient is φ = 2827120320.

The previous prime is 9909000131. The next prime is 9909000161. The reversal of 9909000156 is 6510009099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 396685 + ... + 420923.

It is an arithmetic number, because the mean of its divisors is an integer number (278275200).

Almost surely, 2^9909000156 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 9909000156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13357209600).

9909000156 is an abundant number, since it is smaller than the sum of its proper divisors (16805419044).

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

9909000156 is a wasteful number, since it uses less digits than its factorization.

9909000156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24439 (or 24437 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 39.

The square root of 9909000156 is about 99543.9609217958. The cubic root of 9909000156 is about 2147.8796587214.

The spelling of 9909000156 in words is "nine billion, nine hundred nine million, one hundred fifty-six", and thus it is an aban number.