5535550666 has 4 divisors (see below), whose sum is σ = 8303326002. Its totient is φ = 2767775332.

The previous prime is 5535550663. The next prime is 5535550667. The reversal of 5535550666 is 6660555355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5233799025 + 301751641 = 72345^2 + 17371^2 .

It is not an unprimeable number, because it can be changed into a prime (5535550661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383887665 + ... + 1383887668.

Almost surely, 2^5535550666 is an apocalyptic number.

5535550666 is a deficient number, since it is larger than the sum of its proper divisors (2767775336).

5535550666 is a wasteful number, since it uses less digits than its factorization.

5535550666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767775335.

The product of its (nonzero) digits is 2025000, while the sum is 46.

The square root of 5535550666 is about 74401.2813464930. The cubic root of 5535550666 is about 1768.9692218286.

The spelling of 5535550666 in words is "five billion, five hundred thirty-five million, five hundred fifty thousand, six hundred sixty-six".