9956533659 has 16 divisors (see below), whose sum is σ = 13423355904. Its totient is φ = 6564096000.

The previous prime is 9956533649. The next prime is 9956533679. The reversal of 9956533659 is 9563356599.

9956533659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9956533659 - 2²¹ = 9954436507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9956533619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51739 + ... + 150299.

It is an arithmetic number, because the mean of its divisors is an integer number (838959744).

Almost surely, 2^9956533659 is an apocalyptic number.

9956533659 is a deficient number, since it is larger than the sum of its proper divisors (3466822245).

9956533659 is a wasteful number, since it uses less digits than its factorization.

9956533659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98938.

The product of its digits is 29524500, while the sum is 60.

The square root of 9956533659 is about 99782.4316149892. The cubic root of 9956533659 is about 2151.3086432904.

The spelling of 9956533659 in words is "nine billion, nine hundred fifty-six million, five hundred thirty-three thousand, six hundred fifty-nine".