133066968784 has 80 divisors (see below), whose sum is σ = 288662524416. Its totient is φ = 59121561600.

The previous prime is 133066968781. The next prime is 133066968799. The reversal of 133066968784 is 487869660331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133066968781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153259 + ... + 538165.

Almost surely, 2^133066968784 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 133066968784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144331262208).

133066968784 is an abundant number, since it is smaller than the sum of its proper divisors (155595555632).

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

133066968784 is a wasteful number, since it uses less digits than its factorization.

133066968784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385004 (or 384998 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 133066968784 in words is "one hundred thirty-three billion, sixty-six million, nine hundred sixty-eight thousand, seven hundred eighty-four".