521600146363472 has 320 divisors, whose sum is σ = 1204781496192000. Its totient is φ = 216097717248000.

The previous prime is 521600146363399. The next prime is 521600146363547. The reversal of 521600146363472 is 274363641006125.

It is a self number, because there is not a number n which added to its sum of digits gives 521600146363472.

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, 39626229563 + ... + 39626242725.

It is an arithmetic number, because the mean of its divisors is an integer number (3764942175600).

Almost surely, 2^{521600146363472} 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 521600146363472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602390748096000).

521600146363472 is an abundant number, since it is smaller than the sum of its proper divisors (683181349828528).

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

521600146363472 is a wasteful number, since it uses less digits than its factorization.

521600146363472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14650 (or 14644 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 50.

Adding to 521600146363472 its reverse (274363641006125), we get a palindrome (795963787369597).

The spelling of 521600146363472 in words is "five hundred twenty-one trillion, six hundred billion, one hundred forty-six million, three hundred sixty-three thousand, four hundred seventy-two".