9911051136 has 640 divisors, whose sum is σ = 37055620800. Its totient is φ = 2563964928.

The previous prime is 9911051113. The next prime is 9911051159. The reversal of 9911051136 is 6311501199.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9911051113) and next prime (9911051159).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 9911051136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 35779830 + ... + 35780106.

Almost surely, 2^9911051136 is an apocalyptic number.

9911051136 is a gapful number since it is divisible by the number (96) 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 9911051136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18527810400).

9911051136 is an abundant number, since it is smaller than the sum of its proper divisors (27144569664).

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

9911051136 is a wasteful number, since it uses less digits than its factorization.

9911051136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 9911051136 is about 99554.2622693775. The cubic root of 9911051136 is about 2148.0278389701.

The spelling of 9911051136 in words is "nine billion, nine hundred eleven million, fifty-one thousand, one hundred thirty-six".