553217921280 has 576 divisors, whose sum is σ = 2012180970240. Its totient is φ = 145686159360.

The previous prime is 553217921177. The next prime is 553217921299. The reversal of 553217921280 is 82129712355.

553217921280 is a `hidden beast` number, since 5 + 532 + 1 + 7 + 92 + 1 + 28 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 232345690 + ... + 232348070.

It is an arithmetic number, because the mean of its divisors is an integer number (3493369740).

Almost surely, 2^553217921280 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 553217921280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1006090485120).

553217921280 is an abundant number, since it is smaller than the sum of its proper divisors (1458963048960).

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

553217921280 is an frugal number, since it uses more digits than its factorization.

553217921280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 553217921280 in words is "five hundred fifty-three billion, two hundred seventeen million, nine hundred twenty-one thousand, two hundred eighty".