5515110665 has 32 divisors (see below), whose sum is σ = 6914025216. Its totient is φ = 4219326720.

The previous prime is 5515110661. The next prime is 5515110697. The reversal of 5515110665 is 5660115155.

It is not a de Polignac number, because 5515110665 - 2² = 5515110661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5515110661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8445479 + ... + 8446131.

It is an arithmetic number, because the mean of its divisors is an integer number (216063288).

Almost surely, 2^5515110665 is an apocalyptic number.

It is an amenable number.

5515110665 is a deficient number, since it is larger than the sum of its proper divisors (1398914551).

5515110665 is a wasteful number, since it uses less digits than its factorization.

5515110665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 5515110665 is about 74263.7910761362. The cubic root of 5515110665 is about 1766.7892322505.

The spelling of 5515110665 in words is "five billion, five hundred fifteen million, one hundred ten thousand, six hundred sixty-five".