5516661770 has 16 divisors (see below), whose sum is σ = 9968633928. Its totient is φ = 2198077440.

The previous prime is 5516661751. The next prime is 5516661791. The reversal of 5516661770 is 771666155.

It can be written as a sum of positive squares in 4 ways, for example, as 5086970329 + 429691441 = 71323^2 + 20729^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070711 + ... + 1075850.

Almost surely, 2^5516661770 is an apocalyptic number.

5516661770 is a deficient number, since it is larger than the sum of its proper divisors (4451972158).

5516661770 is a wasteful number, since it uses less digits than its factorization.

5516661770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146825.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 5516661770 is about 74274.2335537702. The cubic root of 5516661770 is about 1766.9548510932.

The spelling of 5516661770 in words is "five billion, five hundred sixteen million, six hundred sixty-one thousand, seven hundred seventy".