553435142320 has 80 divisors (see below), whose sum is σ = 1294643200032. Its totient is φ = 220015319040.

The previous prime is 553435142317. The next prime is 553435142347. The reversal of 553435142320 is 23241534355.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 553435142320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25372539 + ... + 25394341.

Almost surely, 2^553435142320 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 553435142320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647321600016).

553435142320 is an abundant number, since it is smaller than the sum of its proper divisors (741208057712).

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

553435142320 is a wasteful number, since it uses less digits than its factorization.

553435142320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23750 (or 23744 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 553435142320 its reverse (23241534355), we get a palindrome (576676676675).

The spelling of 553435142320 in words is "five hundred fifty-three billion, four hundred thirty-five million, one hundred forty-two thousand, three hundred twenty".