520145604460117 has 8 divisors (see below), whose sum is σ = 528689703168792. Its totient is φ = 511602058060800.

The previous prime is 520145604460091. The next prime is 520145604460129. The reversal of 520145604460117 is 711064406541025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2480769902116 + 517664834558001 = 1575046^2 + 22752249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520145604460117 - 2³¹ = 520143456976469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520145604460717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136178128 + ... + 139945609.

It is an arithmetic number, because the mean of its divisors is an integer number (66086212896099).

Almost surely, 2^{520145604460117} is an apocalyptic number.

It is an amenable number.

520145604460117 is a deficient number, since it is larger than the sum of its proper divisors (8544098708675).

520145604460117 is a wasteful number, since it uses less digits than its factorization.

520145604460117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276154679.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 520145604460117 in words is "five hundred twenty trillion, one hundred forty-five billion, six hundred four million, four hundred sixty thousand, one hundred seventeen".