5254320664040 has 288 divisors, whose sum is σ = 14624948140920. Its totient is φ = 1693653147648.

The previous prime is 5254320663997. The next prime is 5254320664051. The reversal of 5254320664040 is 404660234525.

It can be written as a sum of positive squares in 12 ways, for example, as 8324372644 + 5245996291396 = 91238^2 + 2290414^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 573799142 + ... + 573808298.

Almost surely, 2^{5254320664040} 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 5254320664040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7312474070460).

5254320664040 is an abundant number, since it is smaller than the sum of its proper divisors (9370627476880).

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

5254320664040 is a wasteful number, since it uses less digits than its factorization.

5254320664040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10229 (or 10201 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 5254320664040 its reverse (404660234525), we get a palindrome (5658980898565).

The spelling of 5254320664040 in words is "five trillion, two hundred fifty-four billion, three hundred twenty million, six hundred sixty-four thousand, forty".