9956544555 has 8 divisors (see below), whose sum is σ = 15930471312. Its totient is φ = 5310157088.

The previous prime is 9956544529. The next prime is 9956544557. The reversal of 9956544555 is 5554456599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9956544555 - 2⁵ = 9956544523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9956544495 and 9956544504.

It is not an unprimeable number, because it can be changed into a prime (9956544557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331884804 + ... + 331884833.

It is an arithmetic number, because the mean of its divisors is an integer number (1991308914).

Almost surely, 2^9956544555 is an apocalyptic number.

9956544555 is a deficient number, since it is larger than the sum of its proper divisors (5973926757).

9956544555 is a wasteful number, since it uses less digits than its factorization.

9956544555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663769645.

The product of its digits is 24300000, while the sum is 57.

The square root of 9956544555 is about 99782.4862137640. The cubic root of 9956544555 is about 2151.3094280565.

The spelling of 9956544555 in words is "nine billion, nine hundred fifty-six million, five hundred forty-four thousand, five hundred fifty-five".