5186666816 has 84 divisors (see below), whose sum is σ = 11509552800. Its totient is φ = 2312165376.

The previous prime is 5186666803. The next prime is 5186666827. The reversal of 5186666816 is 6186666815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344045 + ... + 358803.

Almost surely, 2^5186666816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5186666816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5754776400).

5186666816 is an abundant number, since it is smaller than the sum of its proper divisors (6322885984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5186666816 is a wasteful number, since it uses less digits than its factorization.

5186666816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14824 (or 14797 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 53.

The square root of 5186666816 is about 72018.5171744045. The cubic root of 5186666816 is about 1730.9962092825.

Subtracting 5186666816 from its reverse (6186666815), we obtain a palindrome (999999999).

The spelling of 5186666816 in words is "five billion, one hundred eighty-six million, six hundred sixty-six thousand, eight hundred sixteen".