5166805018 has 4 divisors (see below), whose sum is σ = 7750207530. Its totient is φ = 2583402508.

The previous prime is 5166805013. The next prime is 5166805027. The reversal of 5166805018 is 8105086615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3400872489 + 1765932529 = 58317^2 + 42023^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5166805013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1291701253 + ... + 1291701256.

Almost surely, 2^5166805018 is an apocalyptic number.

5166805018 is a deficient number, since it is larger than the sum of its proper divisors (2583402512).

5166805018 is a wasteful number, since it uses less digits than its factorization.

5166805018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2583402511.

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 5166805018 is about 71880.4912198018. The cubic root of 5166805018 is about 1728.7838265433.

The spelling of 5166805018 in words is "five billion, one hundred sixty-six million, eight hundred five thousand, eighteen".