520342137066105 has 24 divisors (see below), whose sum is σ = 902300459186880. Its totient is φ = 277400702351520.

The previous prime is 520342137066091. The next prime is 520342137066107. The reversal of 520342137066105 is 501660731243025.

520342137066105 is a `hidden beast` number, since 5 + 2 + 0 + 3 + 4 + 21 + 3 + 7 + 0 + 6 + 610 + 5 = 666.

It is not a de Polignac number, because 520342137066105 - 2¹² = 520342137062009 is a prime.

It is a super-3 number, since 3×520342137066105³ (a number of 45 digits) contains 333 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520342137066107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2397892045 + ... + 2398109034.

It is an arithmetic number, because the mean of its divisors is an integer number (37595852466120).

Almost surely, 2^{520342137066105} is an apocalyptic number.

It is an amenable number.

520342137066105 is a deficient number, since it is larger than the sum of its proper divisors (381958322120775).

520342137066105 is a wasteful number, since it uses less digits than its factorization.

520342137066105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796003501 (or 4796003498 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 520342137066105 in words is "five hundred twenty trillion, three hundred forty-two billion, one hundred thirty-seven million, sixty-six thousand, one hundred five".