520673453601 has 64 divisors (see below), whose sum is σ = 860177664000. Its totient is φ = 279232930368.

The previous prime is 520673453539. The next prime is 520673453603. The reversal of 520673453601 is 106354376025.

It is not a de Polignac number, because 520673453601 - 2⁹ = 520673453089 is a prime.

It is a super-2 number, since 2×520673453601² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520673453603) 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 63 ways as a sum of consecutive naturals, for example, 1967511 + ... + 2216403.

It is an arithmetic number, because the mean of its divisors is an integer number (13440276000).

Almost surely, 2^520673453601 is an apocalyptic number.

It is an amenable number.

520673453601 is a deficient number, since it is larger than the sum of its proper divisors (339504210399).

520673453601 is a wasteful number, since it uses less digits than its factorization.

520673453601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249043 (or 249029 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 520673453601 in words is "five hundred twenty billion, six hundred seventy-three million, four hundred fifty-three thousand, six hundred one".