520945644896 has 24 divisors (see below), whose sum is σ = 1025630429544. Its totient is φ = 260468075520.

The previous prime is 520945644847. The next prime is 520945644953. The reversal of 520945644896 is 698446549025.

It is a super-2 number, since 2×520945644896² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 2213531 + ... + 2437541.

It is an arithmetic number, because the mean of its divisors is an integer number (42734601231).

Almost surely, 2^520945644896 is an apocalyptic number.

It is an amenable number.

520945644896 is a deficient number, since it is larger than the sum of its proper divisors (504684784648).

520945644896 is a wasteful number, since it uses less digits than its factorization.

520945644896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296694 (or 296686 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 62.

The spelling of 520945644896 in words is "five hundred twenty billion, nine hundred forty-five million, six hundred forty-four thousand, eight hundred ninety-six".