5164520816 has 160 divisors (see below), whose sum is σ = 12665856000. Its totient is φ = 2027047680.

The previous prime is 5164520789. The next prime is 5164520819. The reversal of 5164520816 is 6180254615.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5164520816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5164520819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13626515 + ... + 13626893.

It is an arithmetic number, because the mean of its divisors is an integer number (79161600).

Almost surely, 2^5164520816 is an apocalyptic number.

5164520816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5164520816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6332928000).

5164520816 is an abundant number, since it is smaller than the sum of its proper divisors (7501335184).

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

5164520816 is a wasteful number, since it uses less digits than its factorization.

5164520816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 5164520816 is about 71864.6005763617. The cubic root of 5164520816 is about 1728.5290286216.

The spelling of 5164520816 in words is "five billion, one hundred sixty-four million, five hundred twenty thousand, eight hundred sixteen".