9956318911 has 16 divisors (see below), whose sum is σ = 12541052160. Its totient is φ = 7678183680.

The previous prime is 9956318909. The next prime is 9956318917. The reversal of 9956318911 is 1198136599.

It is a cyclic number.

It is not a de Polignac number, because 9956318911 - 2¹ = 9956318909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956318917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659041 + ... + 673978.

It is an arithmetic number, because the mean of its divisors is an integer number (783815760).

Almost surely, 2^9956318911 is an apocalyptic number.

9956318911 is a deficient number, since it is larger than the sum of its proper divisors (2584733249).

9956318911 is a wasteful number, since it uses less digits than its factorization.

9956318911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333134.

The product of its digits is 524880, while the sum is 52.

The square root of 9956318911 is about 99781.3555279743. The cubic root of 9956318911 is about 2151.2931763094.

The spelling of 9956318911 in words is "nine billion, nine hundred fifty-six million, three hundred eighteen thousand, nine hundred eleven".