550066660981 has 8 divisors (see below), whose sum is σ = 565036569504. Its totient is φ = 535102186320.

The previous prime is 550066660933. The next prime is 550066660999. The reversal of 550066660981 is 189066660055.

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 550066660981 - 2²⁷ = 549932443253 is a prime.

It is a super-2 number, since 2×550066660981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550066664981) 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, 1152835 + ... + 1558576.

It is an arithmetic number, because the mean of its divisors is an integer number (70629571188).

Almost surely, 2^550066660981 is an apocalyptic number.

It is an amenable number.

550066660981 is a deficient number, since it is larger than the sum of its proper divisors (14969908523).

550066660981 is a wasteful number, since it uses less digits than its factorization.

550066660981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716931.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 550066660981 in words is "five hundred fifty billion, sixty-six million, six hundred sixty thousand, nine hundred eighty-one".