551011066216 has 16 divisors (see below), whose sum is σ = 1112618499300. Its totient is φ = 254312799744.

The previous prime is 551011066141. The next prime is 551011066241. The reversal of 551011066216 is 612660110155.

It can be written as a sum of positive squares in 2 ways, for example, as 493722643716 + 57288422500 = 702654^2 + 239350^2 .

It is a super-2 number, since 2×551011066216² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2649091561 + ... + 2649091768.

Almost surely, 2^551011066216 is an apocalyptic number.

It is an amenable number.

551011066216 is an abundant number, since it is smaller than the sum of its proper divisors (561607433084).

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

551011066216 is a wasteful number, since it uses less digits than its factorization.

551011066216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298183348 (or 5298183344 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 551011066216 in words is "five hundred fifty-one billion, eleven million, sixty-six thousand, two hundred sixteen".