522216165450616 has 128 divisors (see below), whose sum is σ = 1209872532718080. Its totient is φ = 205776228404736.

The previous prime is 522216165450613. The next prime is 522216165450647. The reversal of 522216165450616 is 616054561612225.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522216165450613) 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, 323935635 + ... + 325543741.

It is an arithmetic number, because the mean of its divisors is an integer number (9452129161860).

Almost surely, 2^{522216165450616} is an apocalyptic number.

522216165450616 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 522216165450616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604936266359040).

522216165450616 is an abundant number, since it is smaller than the sum of its proper divisors (687656367267464).

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

522216165450616 is a wasteful number, since it uses less digits than its factorization.

522216165450616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609893 (or 1609889 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 522216165450616 in words is "five hundred twenty-two trillion, two hundred sixteen billion, one hundred sixty-five million, four hundred fifty thousand, six hundred sixteen".