5518155216 has 320 divisors, whose sum is σ = 17587445760. Its totient is φ = 1457111040.

The previous prime is 5518155187. The next prime is 5518155233. The reversal of 5518155216 is 6125518155.

It is a congruent number.

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, 48833176 + ... + 48833288.

It is an arithmetic number, because the mean of its divisors is an integer number (54960768).

Almost surely, 2^5518155216 is an apocalyptic number.

5518155216 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 5518155216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8793722880).

5518155216 is an abundant number, since it is smaller than the sum of its proper divisors (12069290544).

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

5518155216 is a wasteful number, since it uses less digits than its factorization.

5518155216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 308 counting only the distinct ones).

The product of its digits is 60000, while the sum is 39.

The square root of 5518155216 is about 74284.2864675969. The cubic root of 5518155216 is about 1767.1142840784.

The spelling of 5518155216 in words is "five billion, five hundred eighteen million, one hundred fifty-five thousand, two hundred sixteen".