520158861486 has 96 divisors (see below), whose sum is σ = 1273331636640. Its totient is φ = 157278084480.

The previous prime is 520158861461. The next prime is 520158861517. The reversal of 520158861486 is 684168851025.

520158861486 is a `hidden beast` number, since 5 + 2 + 0 + 15 + 8 + 8 + 614 + 8 + 6 = 666.

It is a super-3 number, since 3×520158861486³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2898940 + ... + 3073136.

It is an arithmetic number, because the mean of its divisors is an integer number (13263871215).

Almost surely, 2^520158861486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520158861486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636665818320).

520158861486 is an abundant number, since it is smaller than the sum of its proper divisors (753172775154).

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

520158861486 is a wasteful number, since it uses less digits than its factorization.

520158861486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174687 (or 174670 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 520158861486 in words is "five hundred twenty billion, one hundred fifty-eight million, eight hundred sixty-one thousand, four hundred eighty-six".