5513840666 has 8 divisors (see below), whose sum is σ = 8271747540. Its totient is φ = 2756591488.

The previous prime is 5513840659. The next prime is 5513840711. The reversal of 5513840666 is 6660483155.

It can be written as a sum of positive squares in 2 ways, for example, as 5503414225 + 10426441 = 74185^2 + 3229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142901 + ... + 177336.

Almost surely, 2^5513840666 is an apocalyptic number.

5513840666 is a deficient number, since it is larger than the sum of its proper divisors (2757906874).

5513840666 is a wasteful number, since it uses less digits than its factorization.

5513840666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328848.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 5513840666 is about 74255.2399901852. The cubic root of 5513840666 is about 1766.6536053067.

The spelling of 5513840666 in words is "five billion, five hundred thirteen million, eight hundred forty thousand, six hundred sixty-six".