5158722816 has 216 divisors, whose sum is σ = 16613877280. Its totient is φ = 1587050496.

The previous prime is 5158722749. The next prime is 5158722853. The reversal of 5158722816 is 6182278515.

5158722816 is a `hidden beast` number, since 51 + 587 + 2 + 2 + 8 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a super-2 number, since 2×5158722816² = 53224842184637939712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 805515 + ... + 811893.

Almost surely, 2^5158722816 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 5158722816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8306938640).

5158722816 is an abundant number, since it is smaller than the sum of its proper divisors (11455154464).

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

5158722816 is an equidigital number, since it uses as much as digits as its factorization.

5158722816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423 (or 6397 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 5158722816 is about 71824.2494983414. The cubic root of 5158722816 is about 1727.8819363781.

The spelling of 5158722816 in words is "five billion, one hundred fifty-eight million, seven hundred twenty-two thousand, eight hundred sixteen".