551448819216 has 135 divisors (see below), whose sum is σ = 1629291910701. Its totient is φ = 174088265472.

The previous prime is 551448819203. The next prime is 551448819221. The reversal of 551448819216 is 612918844155.

The square root of 551448819216 is 742596.

It is a perfect power (a square), and thus also a powerful number.

551448819216 is a `hidden beast` number, since 5 + 5 + 1 + 448 + 8 + 192 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 472546256400 + 78902562816 = 687420^2 + 280896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 169310260 + ... + 169313516.

Almost surely, 2^551448819216 is an apocalyptic number.

551448819216 is the 742596-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551448819216

551448819216 is an abundant number, since it is smaller than the sum of its proper divisors (1077843091485).

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

551448819216 is an equidigital number, since it uses as much as digits as its factorization.

551448819216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 3281 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The spelling of 551448819216 in words is "five hundred fifty-one billion, four hundred forty-eight million, eight hundred nineteen thousand, two hundred sixteen".