5166556018 has 8 divisors (see below), whose sum is σ = 8345975148. Its totient is φ = 2384564304.

The previous prime is 5166556009. The next prime is 5166556061. The reversal of 5166556018 is 8106556615.

It can be written as a sum of positive squares in 2 ways, for example, as 4779371689 + 387184329 = 69133^2 + 19677^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99356821 + ... + 99356872.

Almost surely, 2^5166556018 is an apocalyptic number.

5166556018 is a deficient number, since it is larger than the sum of its proper divisors (3179419130).

5166556018 is a wasteful number, since it uses less digits than its factorization.

5166556018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198713708.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 5166556018 is about 71878.7591573477. The cubic root of 5166556018 is about 1728.7560547652.

The spelling of 5166556018 in words is "five billion, one hundred sixty-six million, five hundred fifty-six thousand, eighteen".