5165316618 has 128 divisors (see below), whose sum is σ = 13675806720. Its totient is φ = 1259166720.

The previous prime is 5165316599. The next prime is 5165316677. The reversal of 5165316618 is 8166135615.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 5165316618.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3761380 + ... + 3762752.

It is an arithmetic number, because the mean of its divisors is an integer number (106842240).

Almost surely, 2^5165316618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5165316618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6837903360).

5165316618 is an abundant number, since it is smaller than the sum of its proper divisors (8510490102).

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

5165316618 is a wasteful number, since it uses less digits than its factorization.

5165316618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its digits is 129600, while the sum is 42.

The square root of 5165316618 is about 71870.1371781076. The cubic root of 5165316618 is about 1728.6178071847.

The spelling of 5165316618 in words is "five billion, one hundred sixty-five million, three hundred sixteen thousand, six hundred eighteen".