53330435015440 has 160 divisors (see below), whose sum is σ = 136813642116480. Its totient is φ = 19171002470400.

The previous prime is 53330435015321. The next prime is 53330435015483. The reversal of 53330435015440 is 4451053403335.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 53330435015393 and 53330435015402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390513570 + ... + 390650110.

It is an arithmetic number, because the mean of its divisors is an integer number (855085263228).

Almost surely, 2^{53330435015440} 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 53330435015440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68406821058240).

53330435015440 is an abundant number, since it is smaller than the sum of its proper divisors (83483207101040).

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

53330435015440 is a wasteful number, since it uses less digits than its factorization.

53330435015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141641 (or 141635 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 40.

Adding to 53330435015440 its reverse (4451053403335), we get a palindrome (57781488418775).

The spelling of 53330435015440 in words is "fifty-three trillion, three hundred thirty billion, four hundred thirty-five million, fifteen thousand, four hundred forty".