520345430017620 has 96 divisors (see below), whose sum is σ = 1466846442915840. Its totient is φ = 137820981264000.

The previous prime is 520345430017613. The next prime is 520345430017627. The reversal of 520345430017620 is 26710034543025.

It is an interprime number because it is at equal distance from previous prime (520345430017613) and next prime (520345430017627).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520345430017627) 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 31 ways as a sum of consecutive naturals, for example, 42715312 + ... + 53528391.

It is an arithmetic number, because the mean of its divisors is an integer number (15279650447040).

Almost surely, 2^{520345430017620} is an apocalyptic number.

It is an amenable number.

520345430017620 is an abundant number, since it is smaller than the sum of its proper divisors (946501012898220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520345430017620 is a wasteful number, since it uses less digits than its factorization.

520345430017620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96244325 (or 96244323 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 520345430017620 in words is "five hundred twenty trillion, three hundred forty-five billion, four hundred thirty million, seventeen thousand, six hundred twenty".