520333421172816 has 40 divisors (see below), whose sum is σ = 1357503529508064. Its totient is φ = 171727201705600.

The previous prime is 520333421172781. The next prime is 520333421172839. The reversal of 520333421172816 is 618271124333025.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53664745686 + ... + 53664755381.

Almost surely, 2^{520333421172816} is an apocalyptic number.

It is an amenable number.

520333421172816 is an abundant number, since it is smaller than the sum of its proper divisors (837170108335248).

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

520333421172816 is a wasteful number, since it uses less digits than its factorization.

520333421172816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107329501179 (or 107329501173 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 520333421172816 in words is "five hundred twenty trillion, three hundred thirty-three billion, four hundred twenty-one million, one hundred seventy-two thousand, eight hundred sixteen".