553023334640 has 160 divisors (see below), whose sum is σ = 1520662671360. Its totient is φ = 183006028800.

The previous prime is 553023334609. The next prime is 553023334649. The reversal of 553023334640 is 46433320355.

It is a junction number, because it is equal to n+sod(n) for n = 553023334594 and 553023334603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553023334649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79101545 + ... + 79108535.

It is an arithmetic number, because the mean of its divisors is an integer number (9504141696).

Almost surely, 2^553023334640 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 553023334640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760331335680).

553023334640 is an abundant number, since it is smaller than the sum of its proper divisors (967639336720).

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

553023334640 is a wasteful number, since it uses less digits than its factorization.

553023334640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911 (or 11905 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 38.

Adding to 553023334640 its reverse (46433320355), we get a palindrome (599456654995).

The spelling of 553023334640 in words is "five hundred fifty-three billion, twenty-three million, three hundred thirty-four thousand, six hundred forty".