5518685361 has 8 divisors (see below), whose sum is σ = 8409425344. Its totient is φ = 3153534480.

The previous prime is 5518685357. The next prime is 5518685363. The reversal of 5518685361 is 1635868155.

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

It is not a de Polignac number, because 5518685361 - 2² = 5518685357 is a prime.

It is a super-2 number, since 2×5518685361² = 60911776227431400642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5518685361.

It is not an unprimeable number, because it can be changed into a prime (5518685363) 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, 131397250 + ... + 131397291.

It is an arithmetic number, because the mean of its divisors is an integer number (1051178168).

Almost surely, 2^5518685361 is an apocalyptic number.

It is an amenable number.

5518685361 is a deficient number, since it is larger than the sum of its proper divisors (2890739983).

5518685361 is a wasteful number, since it uses less digits than its factorization.

5518685361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262794551.

The product of its digits is 864000, while the sum is 48.

The square root of 5518685361 is about 74287.8547341354. The cubic root of 5518685361 is about 1767.1708728456.

The spelling of 5518685361 in words is "five billion, five hundred eighteen million, six hundred eighty-five thousand, three hundred sixty-one".