520766603401 has 16 divisors (see below), whose sum is σ = 568608719616. Its totient is φ = 473008000000.

The previous prime is 520766603369. The next prime is 520766603417. The reversal of 520766603401 is 104306667025.

It is a cyclic number.

It is not a de Polignac number, because 520766603401 - 2⁵ = 520766603369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520766603471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95708841 + ... + 95714281.

It is an arithmetic number, because the mean of its divisors is an integer number (35538044976).

Almost surely, 2^520766603401 is an apocalyptic number.

It is an amenable number.

520766603401 is a deficient number, since it is larger than the sum of its proper divisors (47842116215).

520766603401 is a wasteful number, since it uses less digits than its factorization.

520766603401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11504.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 520766603401 in words is "five hundred twenty billion, seven hundred sixty-six million, six hundred three thousand, four hundred one".