520051668405 has 16 divisors (see below), whose sum is σ = 849786557184. Its totient is φ = 271459593920.

The previous prime is 520051668377. The next prime is 520051668419. The reversal of 520051668405 is 504866150025.

It is not a de Polignac number, because 520051668405 - 2⁵ = 520051668373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368830266 + ... + 368831675.

It is an arithmetic number, because the mean of its divisors is an integer number (53111659824).

Almost surely, 2^520051668405 is an apocalyptic number.

It is an amenable number.

520051668405 is a deficient number, since it is larger than the sum of its proper divisors (329734888779).

520051668405 is a wasteful number, since it uses less digits than its factorization.

520051668405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737661996.

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 520051668405 in words is "five hundred twenty billion, fifty-one million, six hundred sixty-eight thousand, four hundred five".