5516891858 has 8 divisors (see below), whose sum is σ = 8477175420. Its totient is φ = 2691166720.

The previous prime is 5516891839. The next prime is 5516891869. The reversal of 5516891858 is 8581986155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4514092969 + 1002798889 = 67187^2 + 31667^2 .

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, 33639503 + ... + 33639666.

Almost surely, 2^5516891858 is an apocalyptic number.

5516891858 is a deficient number, since it is larger than the sum of its proper divisors (2960283562).

5516891858 is a wasteful number, since it uses less digits than its factorization.

5516891858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67279212.

The product of its digits is 3456000, while the sum is 56.

The square root of 5516891858 is about 74275.7824462321. The cubic root of 5516891858 is about 1766.9794160368.

The spelling of 5516891858 in words is "five billion, five hundred sixteen million, eight hundred ninety-one thousand, eight hundred fifty-eight".