133716817668 has 48 divisors (see below), whose sum is σ = 360874321920. Its totient is φ = 37744504224.

The previous prime is 133716817667. The next prime is 133716817681. The reversal of 133716817668 is 866718617331.

It is not an unprimeable number, because it can be changed into a prime (133716817667) 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, 9582588 + ... + 9596531.

It is an arithmetic number, because the mean of its divisors is an integer number (7518215040).

Almost surely, 2^133716817668 is an apocalyptic number.

It is an amenable number.

133716817668 is an abundant number, since it is smaller than the sum of its proper divisors (227157504252).

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

133716817668 is a wasteful number, since it uses less digits than its factorization.

133716817668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19179216 (or 19179214 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 57.

The spelling of 133716817668 in words is "one hundred thirty-three billion, seven hundred sixteen million, eight hundred seventeen thousand, six hundred sixty-eight".