53121432633360 has 640 divisors, whose sum is σ = 213525640151040. Its totient is φ = 10609201152000.

The previous prime is 53121432633359. The next prime is 53121432633383. The reversal of 53121432633360 is 6333623412135.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 498313665 + ... + 498420255.

It is an arithmetic number, because the mean of its divisors is an integer number (333633812736).

Almost surely, 2^{53121432633360} 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 53121432633360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106762820075520).

53121432633360 is an abundant number, since it is smaller than the sum of its proper divisors (160404207517680).

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

53121432633360 is a wasteful number, since it uses less digits than its factorization.

53121432633360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107847 (or 107841 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 53121432633360 in words is "fifty-three trillion, one hundred twenty-one billion, four hundred thirty-two million, six hundred thirty-three thousand, three hundred sixty".