523813061616 has 320 divisors, whose sum is σ = 1530715361280. Its totient is φ = 153250652160.

The previous prime is 523813061609. The next prime is 523813061657. The reversal of 523813061616 is 616160318325.

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, 490002330 + ... + 490003398.

It is an arithmetic number, because the mean of its divisors is an integer number (4783485504).

Almost surely, 2^523813061616 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 523813061616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (765357680640).

523813061616 is an abundant number, since it is smaller than the sum of its proper divisors (1006902299664).

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

523813061616 is a wasteful number, since it uses less digits than its factorization.

523813061616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 523813061616 in words is "five hundred twenty-three billion, eight hundred thirteen million, sixty-one thousand, six hundred sixteen".