520666280043 has 32 divisors (see below), whose sum is σ = 881988882432. Its totient is φ = 265777891200.

The previous prime is 520666280041. The next prime is 520666280059. The reversal of 520666280043 is 340082666025.

It is a happy number.

It is not a de Polignac number, because 520666280043 - 2¹ = 520666280041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520666279977 and 520666280004.

It is not an unprimeable number, because it can be changed into a prime (520666280041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30752868 + ... + 30769793.

It is an arithmetic number, because the mean of its divisors is an integer number (27562152576).

Almost surely, 2^520666280043 is an apocalyptic number.

520666280043 is a deficient number, since it is larger than the sum of its proper divisors (361322602389).

520666280043 is a wasteful number, since it uses less digits than its factorization.

520666280043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61522715.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 520666280043 in words is "five hundred twenty billion, six hundred sixty-six million, two hundred eighty thousand, forty-three".