520800168040 has 32 divisors (see below), whose sum is σ = 1233474084000. Its totient is φ = 197355852864.

The previous prime is 520800168019. The next prime is 520800168071. The reversal of 520800168040 is 40861008025.

It is a junction number, because it is equal to n+sod(n) for n = 520800167987 and 520800168005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342630930 + ... + 342632449.

It is an arithmetic number, because the mean of its divisors is an integer number (38546065125).

Almost surely, 2^520800168040 is an apocalyptic number.

It is an amenable number.

520800168040 is an abundant number, since it is smaller than the sum of its proper divisors (712673915960).

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

520800168040 is a wasteful number, since it uses less digits than its factorization.

520800168040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685263409 (or 685263405 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 520800168040 in words is "five hundred twenty billion, eight hundred million, one hundred sixty-eight thousand, forty".