520288605720 has 160 divisors (see below), whose sum is σ = 1883267028720. Its totient is φ = 128071031040.

The previous prime is 520288605673. The next prime is 520288605773. The reversal of 520288605720 is 27506882025.

520288605720 is a `hidden beast` number, since 52 + 0 + 28 + 8 + 6 + 0 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6134146 + ... + 6218385.

Almost surely, 2^520288605720 is an apocalyptic number.

It is an amenable number.

520288605720 is an abundant number, since it is smaller than the sum of its proper divisors (1362978423000).

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

520288605720 is a wasteful number, since it uses less digits than its factorization.

520288605720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12352567 (or 12352554 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 520288605720 in words is "five hundred twenty billion, two hundred eighty-eight million, six hundred five thousand, seven hundred twenty".