550964645985 has 32 divisors (see below), whose sum is σ = 949430482560. Its totient is φ = 271222414848.

The previous prime is 550964645963. The next prime is 550964646017. The reversal of 550964645985 is 589546469055.

It is not a de Polignac number, because 550964645985 - 2⁵ = 550964645953 is a prime.

It is a super-3 number, since 3×550964645985³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2480581 + ... + 2693549.

It is an arithmetic number, because the mean of its divisors is an integer number (29669702580).

Almost surely, 2^550964645985 is an apocalyptic number.

It is an amenable number.

550964645985 is a deficient number, since it is larger than the sum of its proper divisors (398465836575).

550964645985 is a wasteful number, since it uses less digits than its factorization.

550964645985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226257.

The product of its (nonzero) digits is 233280000, while the sum is 66.

The spelling of 550964645985 in words is "five hundred fifty billion, nine hundred sixty-four million, six hundred forty-five thousand, nine hundred eighty-five".