550160665 has 8 divisors (see below), whose sum is σ = 661172040. Its totient is φ = 439475712.

The previous prime is 550160641. The next prime is 550160669. The reversal of 550160665 is 566061055.

It can be written as a sum of positive squares in 4 ways, for example, as 224430361 + 325730304 = 14981^2 + 18048^2 .

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 550160665 - 2²³ = 541772057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550160665.

It is not an unprimeable number, because it can be changed into a prime (550160669) 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, 77880 + ... + 84649.

It is an arithmetic number, because the mean of its divisors is an integer number (82646505).

Almost surely, 2^550160665 is an apocalyptic number.

It is an amenable number.

550160665 is a deficient number, since it is larger than the sum of its proper divisors (111011375).

550160665 is a wasteful number, since it uses less digits than its factorization.

550160665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163211.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 550160665 is about 23455.5039383084. The cubic root of 550160665 is about 819.4010423802.

It can be divided in two parts, 5501 and 60665, that added together give a palindrome (66166).

The spelling of 550160665 in words is "five hundred fifty million, one hundred sixty thousand, six hundred sixty-five".