13573322568 has 192 divisors, whose sum is σ = 41167526400. Its totient is φ = 4012968960.

The previous prime is 13573322561. The next prime is 13573322599. The reversal of 13573322568 is 86522337531.

13573322568 is a `hidden beast` number, since 1 + 3 + 57 + 3 + 32 + 2 + 568 = 666.

It is a super-2 number, since 2×13573322568² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13573322561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2568553 + ... + 2573831.

It is an arithmetic number, because the mean of its divisors is an integer number (214414200).

Almost surely, 2^13573322568 is an apocalyptic number.

13573322568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13573322568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20583763200).

13573322568 is an abundant number, since it is smaller than the sum of its proper divisors (27594203832).

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

13573322568 is a wasteful number, since it uses less digits than its factorization.

13573322568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412 (or 5405 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 13573322568 in words is "thirteen billion, five hundred seventy-three million, three hundred twenty-two thousand, five hundred sixty-eight".