550650666 has 32 divisors (see below), whose sum is σ = 1199246400. Its totient is φ = 167892480.

The previous prime is 550650649. The next prime is 550650671. The reversal of 550650666 is 666056055.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 79975 + ... + 86586.

It is an arithmetic number, because the mean of its divisors is an integer number (37476450).

Almost surely, 2^550650666 is an apocalyptic number.

550650666 is an abundant number, since it is smaller than the sum of its proper divisors (648595734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550650666 is a wasteful number, since it uses less digits than its factorization.

550650666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166614.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 550650666 is about 23465.9469444555. The cubic root of 550650666 is about 819.6442369072.

The spelling of 550650666 in words is "five hundred fifty million, six hundred fifty thousand, six hundred sixty-six".