9930555550055 has 64 divisors (see below), whose sum is σ = 14408103426048. Its totient is φ = 6423228979200.

The previous prime is 9930555550031. The next prime is 9930555550129. The reversal of 9930555550055 is 5500555550399.

It is not a de Polignac number, because 9930555550055 - 2⁸ = 9930555549799 is a prime.

It is a super-2 number, since 2×9930555550055² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 642705080 + ... + 642720530.

It is an arithmetic number, because the mean of its divisors is an integer number (225126616032).

Almost surely, 2^{9930555550055} is an apocalyptic number.

9930555550055 is a deficient number, since it is larger than the sum of its proper divisors (4477547875993).

9930555550055 is a wasteful number, since it uses less digits than its factorization.

9930555550055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26496.

The product of its (nonzero) digits is 18984375, while the sum is 56.

The spelling of 9930555550055 in words is "nine trillion, nine hundred thirty billion, five hundred fifty-five million, five hundred fifty thousand, fifty-five".