520795115798256 has 320 divisors, whose sum is σ = 1690165339161600. Its totient is φ = 152337133403136.

The previous prime is 520795115798249. The next prime is 520795115798263. The reversal of 520795115798256 is 652897511597025.

520795115798256 is a `hidden beast` number, since 5 + 2 + 0 + 7 + 9 + 511 + 57 + 9 + 8 + 2 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (520795115798249) and next prime (520795115798263).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8686530 + ... + 33422238.

It is an arithmetic number, because the mean of its divisors is an integer number (5281766684880).

Almost surely, 2^{520795115798256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520795115798256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (845082669580800).

520795115798256 is an abundant number, since it is smaller than the sum of its proper divisors (1169370223363344).

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

520795115798256 is a wasteful number, since it uses less digits than its factorization.

520795115798256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24735925 (or 24735913 counting only the distinct ones).

The product of its (nonzero) digits is 476280000, while the sum is 72.

The spelling of 520795115798256 in words is "five hundred twenty trillion, seven hundred ninety-five billion, one hundred fifteen million, seven hundred ninety-eight thousand, two hundred fifty-six".