520743633696 has 1536 divisors, whose sum is σ = 1975228416000. Its totient is φ = 131139993600.

The previous prime is 520743633647. The next prime is 520743633713. The reversal of 520743633696 is 696336347025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 5851052020 + ... + 5851052108.

It is an arithmetic number, because the mean of its divisors is an integer number (1285956000).

Almost surely, 2^520743633696 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 520743633696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987614208000).

520743633696 is an abundant number, since it is smaller than the sum of its proper divisors (1454484782304).

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

520743633696 is a wasteful number, since it uses less digits than its factorization.

520743633696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 54.

The spelling of 520743633696 in words is "five hundred twenty billion, seven hundred forty-three million, six hundred thirty-three thousand, six hundred ninety-six".