133568870632568 has 144 divisors (see below), whose sum is σ = 304571740672080. Its totient is φ = 54750547627776.

The previous prime is 133568870632553. The next prime is 133568870632649. The reversal of 133568870632568 is 865236078865331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4351187396 + ... + 4351218092.

It is an arithmetic number, because the mean of its divisors is an integer number (2115081532445).

Almost surely, 2^{133568870632568} 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 133568870632568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152285870336040).

133568870632568 is an abundant number, since it is smaller than the sum of its proper divisors (171002870039512).

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

133568870632568 is a wasteful number, since it uses less digits than its factorization.

133568870632568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51746 (or 51712 counting only the distinct ones).

The product of its (nonzero) digits is 1045094400, while the sum is 71.

The spelling of 133568870632568 in words is "one hundred thirty-three trillion, five hundred sixty-eight billion, eight hundred seventy million, six hundred thirty-two thousand, five hundred sixty-eight".